13638905

素因数分解:

$5^1\times 7^2\times {\mathrm{179}}^1\times {\mathrm{311}}^1$

素因数の和:509

約数の個数: 24

約数和(自身を含む): 19206720

約数和(自身を除く): 5567815

約数列:

[1, 5, 7, 35, 49, 179, 245, 311, 895, 1253, 1555, 2177, 6265, 8771, 10885, 15239, 43855, 55669, 76195, 278345, 389683, 1948415, 2727781, 13638905]

約数ペア:

[(1, 13638905), (5, 2727781), (7, 1948415), (35, 389683), (49, 278345), (179, 76195), (245, 55669), (311, 43855), (895, 15239), (1253, 10885), (1555, 8771), (2177, 6265)]