19251279

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{69001}}^1$

素因数の和:69038

約数の個数: 12

約数和(自身を含む): 28704832

約数和(自身を除く): 9453553

約数列:

[1, 3, 9, 31, 93, 279, 69001, 207003, 621009, 2139031, 6417093, 19251279]

約数ペア:

[(1, 19251279), (3, 6417093), (9, 2139031), (31, 621009), (93, 207003), (279, 69001)]