12908565

素因数分解:

$3^4\times 5^1\times {\mathrm{31873}}^1$

素因数の和:31890

約数の個数: 20

約数和(自身を含む): 23140524

約数和(自身を除く): 10231959

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 31873, 95619, 159365, 286857, 478095, 860571, 1434285, 2581713, 4302855, 12908565]

約数ペア:

[(1, 12908565), (3, 4302855), (5, 2581713), (9, 1434285), (15, 860571), (27, 478095), (45, 286857), (81, 159365), (135, 95619), (405, 31873)]