21123156968

素因数分解:

$2^3\times {\mathrm{101}}^1\times {\mathrm{26142521}}^1$

素因数の和:26142628

約数の個数: 16

約数和(自身を含む): 39998058660

約数和(自身を除く): 18874901692

約数列:

[1, 2, 4, 8, 101, 202, 404, 808, 26142521, 52285042, 104570084, 209140168, 2640394621, 5280789242, 10561578484, 21123156968]

約数ペア:

[(1, 21123156968), (2, 10561578484), (4, 5280789242), (8, 2640394621), (101, 209140168), (202, 104570084), (404, 52285042), (808, 26142521)]