21105421

素因数分解:

${\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1\times {\mathrm{151}}^1$

素因数の和:336

約数の個数: 16

約数和(自身を含む): 22763520

約数和(自身を除く): 1658099

約数列:

[1, 23, 59, 103, 151, 1357, 2369, 3473, 6077, 8909, 15553, 139771, 204907, 357719, 917627, 21105421]

約数ペア:

[(1, 21105421), (23, 917627), (59, 357719), (103, 204907), (151, 139771), (1357, 15553), (2369, 8909), (3473, 6077)]