56321991

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{51719}}^1$

素因数の和:51747

約数の個数: 18

約数和(自身を含む): 89423880

約数和(自身を除く): 33101889

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 51719, 155157, 465471, 568909, 1706727, 5120181, 6257999, 18773997, 56321991]

約数ペア:

[(1, 56321991), (3, 18773997), (9, 6257999), (11, 5120181), (33, 1706727), (99, 568909), (121, 465471), (363, 155157), (1089, 51719)]