20207403

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{557}}^1$

素因数の和:731

約数の個数: 24

約数和(自身を含む): 30466800

約数和(自身を除く): 10259397

約数列:

[1, 3, 9, 29, 87, 139, 261, 417, 557, 1251, 1671, 4031, 5013, 12093, 16153, 36279, 48459, 77423, 145377, 232269, 696807, 2245267, 6735801, 20207403]

約数ペア:

[(1, 20207403), (3, 6735801), (9, 2245267), (29, 696807), (87, 232269), (139, 145377), (261, 77423), (417, 48459), (557, 36279), (1251, 16153), (1671, 12093), (4031, 5013)]