21621977

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{431}}^1$

素因数の和:688

約数の個数: 16

約数和(自身を含む): 24820992

約数和(自身を除く): 3199015

約数列:

[1, 13, 17, 221, 227, 431, 2951, 3859, 5603, 7327, 50167, 95251, 97837, 1271881, 1663229, 21621977]

約数ペア:

[(1, 21621977), (13, 1663229), (17, 1271881), (221, 97837), (227, 95251), (431, 50167), (2951, 7327), (3859, 5603)]