divisor function

名词 n.
中文释义

英文释义

名词 n.
  1. A function yielding the sum of the divisors of an integer. It is denoted by the Greek letter σ (sigma).
    — The value of the divisor function for 20 is 1 + 2 + 4 + 5 + 10 + 20 = 42, denoted as σ(20) = 42.

词形变化

divisor functions plural
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