18139455

素因数分解:

$3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2473}}^1$

素因数の和:2647

約数の個数: 24

約数和(自身を含む): 31647408

約数和(自身を除く): 13507953

約数列:

[1, 3, 5, 9, 15, 45, 163, 489, 815, 1467, 2445, 2473, 7335, 7419, 12365, 22257, 37095, 111285, 403099, 1209297, 2015495, 3627891, 6046485, 18139455]

約数ペア:

[(1, 18139455), (3, 6046485), (5, 3627891), (9, 2015495), (15, 1209297), (45, 403099), (163, 111285), (489, 37095), (815, 22257), (1467, 12365), (2445, 7419), (2473, 7335)]