21007954

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{56171}}^1$

素因数の和:56201

約数の個数: 16

約数和(自身を含む): 36399456

約数和(自身を除く): 15391502

約数列:

[1, 2, 11, 17, 22, 34, 187, 374, 56171, 112342, 617881, 954907, 1235762, 1909814, 10503977, 21007954]

約数ペア:

[(1, 21007954), (2, 10503977), (11, 1909814), (17, 1235762), (22, 954907), (34, 617881), (187, 112342), (374, 56171)]