389745189

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{209203}}^1$

素因数の和:209238

約数の個数: 20

約数和(自身を含む): 607528416

約数和(自身を除く): 217783227

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 209203, 627609, 1882827, 4811669, 5648481, 14435007, 16945443, 43305021, 129915063, 389745189]

約数ペア:

[(1, 389745189), (3, 129915063), (9, 43305021), (23, 16945443), (27, 14435007), (69, 5648481), (81, 4811669), (207, 1882827), (621, 627609), (1863, 209203)]