20921702

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1\times {\mathrm{2213}}^1$

素因数の和:2407

約数の個数: 16

約数和(自身を含む): 32678640

約数和(自身を除く): 11756938

約数列:

[1, 2, 29, 58, 163, 326, 2213, 4426, 4727, 9454, 64177, 128354, 360719, 721438, 10460851, 20921702]

約数ペア:

[(1, 20921702), (2, 10460851), (29, 721438), (58, 360719), (163, 128354), (326, 64177), (2213, 9454), (4426, 4727)]