21585837

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2137}}^1$

素因数の和:2197

約数の個数: 32

約数和(自身を含む): 36397312

約数和(自身を除く): 14811475

約数列:

[1, 3, 7, 13, 21, 37, 39, 91, 111, 259, 273, 481, 777, 1443, 2137, 3367, 6411, 10101, 14959, 27781, 44877, 79069, 83343, 194467, 237207, 553483, 583401, 1027897, 1660449, 3083691, 7195279, 21585837]

約数ペア:

[(1, 21585837), (3, 7195279), (7, 3083691), (13, 1660449), (21, 1027897), (37, 583401), (39, 553483), (91, 237207), (111, 194467), (259, 83343), (273, 79069), (481, 44877), (777, 27781), (1443, 14959), (2137, 10101), (3367, 6411)]