20698315

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{683}}^1$

素因数の和:747

約数の個数: 32

約数和(自身を含む): 29548800

約数和(自身を除く): 8850485

約数列:

[1, 5, 11, 19, 29, 55, 95, 145, 209, 319, 551, 683, 1045, 1595, 2755, 3415, 6061, 7513, 12977, 19807, 30305, 37565, 64885, 99035, 142747, 217877, 376333, 713735, 1089385, 1881665, 4139663, 20698315]

約数ペア:

[(1, 20698315), (5, 4139663), (11, 1881665), (19, 1089385), (29, 713735), (55, 376333), (95, 217877), (145, 142747), (209, 99035), (319, 64885), (551, 37565), (683, 30305), (1045, 19807), (1595, 12977), (2755, 7513), (3415, 6061)]