21000391612

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{99058451}}^1$

素因数の和:99058508

約数の個数: 12

約数和(自身を含む): 37444094856

約数和(自身を除く): 16443703244

約数列:

[1, 2, 4, 53, 106, 212, 99058451, 198116902, 396233804, 5250097903, 10500195806, 21000391612]

約数ペア:

[(1, 21000391612), (2, 10500195806), (4, 5250097903), (53, 396233804), (106, 198116902), (212, 99058451)]