20640837

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{33893}}^1$

素因数の和:33932

約数の個数: 16

約数和(自身を含む): 32538240

約数和(自身を除く): 11897403

約数列:

[1, 3, 7, 21, 29, 87, 203, 609, 33893, 101679, 237251, 711753, 982897, 2948691, 6880279, 20640837]

約数ペア:

[(1, 20640837), (3, 6880279), (7, 2948691), (21, 982897), (29, 711753), (87, 237251), (203, 101679), (609, 33893)]