18807621

素因数分解:

$3^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{1319}}^1$

素因数の和:1433

約数の個数: 24

約数和(自身を含む): 29494080

約数和(自身を除く): 10686459

約数列:

[1, 3, 7, 21, 49, 97, 147, 291, 679, 1319, 2037, 3957, 4753, 9233, 14259, 27699, 64631, 127943, 193893, 383829, 895601, 2686803, 6269207, 18807621]

約数ペア:

[(1, 18807621), (3, 6269207), (7, 2686803), (21, 895601), (49, 383829), (97, 193893), (147, 127943), (291, 64631), (679, 27699), (1319, 14259), (2037, 9233), (3957, 4753)]