18789969

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{1399}}^1$

素因数の和:1461

約数の個数: 24

約数和(自身を含む): 28302400

約数和(自身を除く): 9512431

約数列:

[1, 3, 11, 33, 37, 111, 121, 363, 407, 1221, 1399, 4197, 4477, 13431, 15389, 46167, 51763, 155289, 169279, 507837, 569393, 1708179, 6263323, 18789969]

約数ペア:

[(1, 18789969), (3, 6263323), (11, 1708179), (33, 569393), (37, 507837), (111, 169279), (121, 155289), (363, 51763), (407, 46167), (1221, 15389), (1399, 13431), (4197, 4477)]