306891

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:123

約数の個数: 24

約数和(自身を含む): 496496

約数和(自身を除く): 189605

約数列:

[1, 3, 9, 13, 39, 43, 61, 117, 129, 183, 387, 549, 559, 793, 1677, 2379, 2623, 5031, 7137, 7869, 23607, 34099, 102297, 306891]

約数ペア:

[(1, 306891), (3, 102297), (9, 34099), (13, 23607), (39, 7869), (43, 7137), (61, 5031), (117, 2623), (129, 2379), (183, 1677), (387, 793), (549, 559)]