19669951

素因数分解:

$7^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{491}}^1$

素因数の和:654

約数の個数: 16

約数和(自身を含む): 23143680

約数和(自身を除く): 3473729

約数列:

[1, 7, 59, 97, 413, 491, 679, 3437, 5723, 28969, 40061, 47627, 202783, 333389, 2809993, 19669951]

約数ペア:

[(1, 19669951), (7, 2809993), (59, 333389), (97, 202783), (413, 47627), (491, 40061), (679, 28969), (3437, 5723)]