19715801

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{3853}}^1$

素因数の和:3920

約数の個数: 16

約数和(自身を含む): 24418944

約数和(自身を除く): 4703143

約数列:

[1, 7, 17, 43, 119, 301, 731, 3853, 5117, 26971, 65501, 165679, 458507, 1159753, 2816543, 19715801]

約数ペア:

[(1, 19715801), (7, 2816543), (17, 1159753), (43, 458507), (119, 165679), (301, 65501), (731, 26971), (3853, 5117)]