20413863

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{5861}}^1$

素因数の和:5916

約数の個数: 20

約数和(自身を含む): 31209288

約数和(自身を除く): 10795425

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 5861, 17583, 52749, 158247, 252023, 474741, 756069, 2268207, 6804621, 20413863]

約数ペア:

[(1, 20413863), (3, 6804621), (9, 2268207), (27, 756069), (43, 474741), (81, 252023), (129, 158247), (387, 52749), (1161, 17583), (3483, 5861)]