21271471

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{3319}}^1$

素因数の和:3378

約数の個数: 16

約数和(自身を含む): 25099200

約数和(自身を除く): 3827729

約数列:

[1, 13, 17, 29, 221, 377, 493, 3319, 6409, 43147, 56423, 96251, 733499, 1251263, 1636267, 21271471]

約数ペア:

[(1, 21271471), (13, 1636267), (17, 1251263), (29, 733499), (221, 96251), (377, 56423), (493, 43147), (3319, 6409)]