20565862209

素因数分解:

$3^2\times {\mathrm{421}}^1\times {\mathrm{5427781}}^1$

素因数の和:5428208

約数の個数: 12

約数和(自身を含む): 29776812052

約数和(自身を除く): 9210949843

約数列:

[1, 3, 9, 421, 1263, 3789, 5427781, 16283343, 48850029, 2285095801, 6855287403, 20565862209]

約数ペア:

[(1, 20565862209), (3, 6855287403), (9, 2285095801), (421, 48850029), (1263, 16283343), (3789, 5427781)]