2154645488

素因数分解:

$2^4\times {\mathrm{419}}^1\times {\mathrm{321397}}^1$

素因数の和:321824

約数の個数: 20

約数和(自身を含む): 4184601960

約数和(自身を除く): 2029956472

約数列:

[1, 2, 4, 8, 16, 419, 838, 1676, 3352, 6704, 321397, 642794, 1285588, 2571176, 5142352, 134665343, 269330686, 538661372, 1077322744, 2154645488]

約数ペア:

[(1, 2154645488), (2, 1077322744), (4, 538661372), (8, 269330686), (16, 134665343), (419, 5142352), (838, 2571176), (1676, 1285588), (3352, 642794), (6704, 321397)]