21999518

素因数分解:

$2^1\times {\mathrm{113}}^1\times {\mathrm{311}}^1\times {\mathrm{313}}^1$

素因数の和:739

約数の個数: 16

約数和(自身を含む): 33505056

約数和(自身を除く): 11505538

約数列:

[1, 2, 113, 226, 311, 313, 622, 626, 35143, 35369, 70286, 70738, 97343, 194686, 10999759, 21999518]

約数ペア:

[(1, 21999518), (2, 10999759), (113, 194686), (226, 97343), (311, 70738), (313, 70286), (622, 35369), (626, 35143)]