20213306491

素因数分解:

$7^2\times {\mathrm{97}}^1\times {\mathrm{4252747}}^1$

素因数の和:4252858

約数の個数: 12

約数和(自身を含む): 23755850328

約数和(自身を除く): 3542543837

約数列:

[1, 7, 49, 97, 679, 4753, 4252747, 29769229, 208384603, 412516459, 2887615213, 20213306491]

約数ペア:

[(1, 20213306491), (7, 2887615213), (49, 412516459), (97, 208384603), (679, 29769229), (4753, 4252747)]