398732013

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{677}}^1\times {\mathrm{2111}}^1$

素因数の和:2825

約数の個数: 24

約数和(自身を含む): 595685376

約数和(自身を除く): 196953363

約数列:

[1, 3, 9, 31, 93, 279, 677, 2031, 2111, 6093, 6333, 18999, 20987, 62961, 65441, 188883, 196323, 588969, 1429147, 4287441, 12862323, 44303557, 132910671, 398732013]

約数ペア:

[(1, 398732013), (3, 132910671), (9, 44303557), (31, 12862323), (93, 4287441), (279, 1429147), (677, 588969), (2031, 196323), (2111, 188883), (6093, 65441), (6333, 62961), (18999, 20987)]