388236898

素因数分解:

$2^1\times 7^4\times {\mathrm{80849}}^1$

素因数の和:80879

約数の個数: 20

約数和(自身を含む): 679382550

約数和(自身を除く): 291145652

約数列:

[1, 2, 7, 14, 49, 98, 343, 686, 2401, 4802, 80849, 161698, 565943, 1131886, 3961601, 7923202, 27731207, 55462414, 194118449, 388236898]

約数ペア:

[(1, 388236898), (2, 194118449), (7, 55462414), (14, 27731207), (49, 7923202), (98, 3961601), (343, 1131886), (686, 565943), (2401, 161698), (4802, 80849)]