20215467

素因数分解:

$3^3\times {\mathrm{109}}^1\times {\mathrm{6869}}^1$

素因数の和:6987

約数の個数: 16

約数和(自身を含む): 30228000

約数和(自身を除く): 10012533

約数列:

[1, 3, 9, 27, 109, 327, 981, 2943, 6869, 20607, 61821, 185463, 748721, 2246163, 6738489, 20215467]

約数ペア:

[(1, 20215467), (3, 6738489), (9, 2246163), (27, 748721), (109, 185463), (327, 61821), (981, 20607), (2943, 6869)]