20565323108

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{42490337}}^1$

素因数の和:42490363

約数の個数: 18

約数和(自身を含む): 39558504678

約数和(自身を除く): 18993181570

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 42490337, 84980674, 169961348, 467393707, 934787414, 1869574828, 5141330777, 10282661554, 20565323108]

約数ペア:

[(1, 20565323108), (2, 10282661554), (4, 5141330777), (11, 1869574828), (22, 934787414), (44, 467393707), (121, 169961348), (242, 84980674), (484, 42490337)]