18780349

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{1229}}^1$

素因数の和:1332

約数の個数: 16

約数和(自身を含む): 22435200

約数和(自身を除く): 3654851

約数列:

[1, 7, 37, 59, 259, 413, 1229, 2183, 8603, 15281, 45473, 72511, 318311, 507577, 2682907, 18780349]

約数ペア:

[(1, 18780349), (7, 2682907), (37, 507577), (59, 318311), (259, 72511), (413, 45473), (1229, 15281), (2183, 8603)]