15390557

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{653}}^1$

素因数の和:717

約数の個数: 24

約数和(自身を含む): 19831896

約数和(自身を除く): 4441339

約数列:

[1, 7, 13, 37, 49, 91, 259, 481, 637, 653, 1813, 3367, 4571, 8489, 23569, 24161, 31997, 59423, 169127, 314093, 415961, 1183889, 2198651, 15390557]

約数ペア:

[(1, 15390557), (7, 2198651), (13, 1183889), (37, 415961), (49, 314093), (91, 169127), (259, 59423), (481, 31997), (637, 24161), (653, 23569), (1813, 8489), (3367, 4571)]