40389531

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{751}}^1$

素因数の和:971

約数の個数: 32

約数和(自身を含む): 66705408

約数和(自身を除く): 26315877

約数列:

[1, 3, 7, 13, 21, 39, 91, 197, 273, 591, 751, 1379, 2253, 2561, 4137, 5257, 7683, 9763, 15771, 17927, 29289, 53781, 68341, 147947, 205023, 443841, 1035629, 1923311, 3106887, 5769933, 13463177, 40389531]

約数ペア:

[(1, 40389531), (3, 13463177), (7, 5769933), (13, 3106887), (21, 1923311), (39, 1035629), (91, 443841), (197, 205023), (273, 147947), (591, 68341), (751, 53781), (1379, 29289), (2253, 17927), (2561, 15771), (4137, 9763), (5257, 7683)]