20888161

素因数分解:

$7^2\times {\mathrm{149}}^1\times {\mathrm{2861}}^1$

素因数の和:3024

約数の個数: 12

約数和(自身を含む): 24470100

約数和(自身を除く): 3581939

約数列:

[1, 7, 49, 149, 1043, 2861, 7301, 20027, 140189, 426289, 2984023, 20888161]

約数ペア:

[(1, 20888161), (7, 2984023), (49, 426289), (149, 140189), (1043, 20027), (2861, 7301)]