21900537

素因数分解:

$3^4\times {\mathrm{101}}^1\times {\mathrm{2677}}^1$

素因数の和:2790

約数の個数: 20

約数和(自身を含む): 33051876

約数和(自身を除く): 11151339

約数列:

[1, 3, 9, 27, 81, 101, 303, 909, 2677, 2727, 8031, 8181, 24093, 72279, 216837, 270377, 811131, 2433393, 7300179, 21900537]

約数ペア:

[(1, 21900537), (3, 7300179), (9, 2433393), (27, 811131), (81, 270377), (101, 216837), (303, 72279), (909, 24093), (2677, 8181), (2727, 8031)]