"divisor function" meaning in English

{
  "forms": [
    {
      "form": "divisor functions",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "divisor function (plural divisor functions)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Mathematics",
          "orig": "en:Mathematics",
          "parents": [
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "The value of the divisor function for 20 is 1 + 2 + 4 + 5 + 10 + 20 = 42, denoted as σ(20) = 42."
        }
      ],
      "glosses": [
        "A function yielding the sum of the divisors of an integer. It is denoted by the Greek letter σ (sigma)."
      ],
      "id": "en-divisor_function-en-noun-h46PGGvY",
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "sum",
          "sum"
        ],
        [
          "divisor",
          "divisor"
        ],
        [
          "integer",
          "integer"
        ]
      ],
      "raw_glosses": [
        "(mathematics) A function yielding the sum of the divisors of an integer. It is denoted by the Greek letter σ (sigma)."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ],
      "wikipedia": [
        "divisor function"
      ]
    }
  ],
  "word": "divisor function"
}

{
  "forms": [
    {
      "form": "divisor functions",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "divisor function (plural divisor functions)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "en:Mathematics"
      ],
      "examples": [
        {
          "text": "The value of the divisor function for 20 is 1 + 2 + 4 + 5 + 10 + 20 = 42, denoted as σ(20) = 42."
        }
      ],
      "glosses": [
        "A function yielding the sum of the divisors of an integer. It is denoted by the Greek letter σ (sigma)."
      ],
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "sum",
          "sum"
        ],
        [
          "divisor",
          "divisor"
        ],
        [
          "integer",
          "integer"
        ]
      ],
      "raw_glosses": [
        "(mathematics) A function yielding the sum of the divisors of an integer. It is denoted by the Greek letter σ (sigma)."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ],
      "wikipedia": [
        "divisor function"
      ]
    }
  ],
  "word": "divisor function"
}