21991629

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{1289}}^1$

素因数の和:1361

約数の個数: 24

約数和(自身を含む): 32941440

約数和(自身を除く): 10949811

約数列:

[1, 3, 11, 33, 47, 121, 141, 363, 517, 1289, 1551, 3867, 5687, 14179, 17061, 42537, 60583, 155969, 181749, 467907, 666413, 1999239, 7330543, 21991629]

約数ペア:

[(1, 21991629), (3, 7330543), (11, 1999239), (33, 666413), (47, 467907), (121, 181749), (141, 155969), (363, 60583), (517, 42537), (1289, 17061), (1551, 14179), (3867, 5687)]