18078705

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{9343}}^1$

素因数の和:9397

約数の個数: 24

約数和(自身を含む): 32068608

約数和(自身を除く): 13989903

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 9343, 28029, 46715, 84087, 140145, 401749, 420435, 1205247, 2008745, 3615741, 6026235, 18078705]

約数ペア:

[(1, 18078705), (3, 6026235), (5, 3615741), (9, 2008745), (15, 1205247), (43, 420435), (45, 401749), (129, 140145), (215, 84087), (387, 46715), (645, 28029), (1935, 9343)]