21116901

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{18671}}^1$

素因数の和:18716

約数の個数: 16

約数和(自身を含む): 31368960

約数和(自身を除く): 10252059

約数列:

[1, 3, 13, 29, 39, 87, 377, 1131, 18671, 56013, 242723, 541459, 728169, 1624377, 7038967, 21116901]

約数ペア:

[(1, 21116901), (3, 7038967), (13, 1624377), (29, 728169), (39, 541459), (87, 242723), (377, 56013), (1131, 18671)]