397807749

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{823}}^1\times {\mathrm{1249}}^1$

素因数の和:2121

約数の個数: 24

約数和(自身を含む): 589160000

約数和(自身を除く): 191352251

約数列:

[1, 3, 9, 43, 129, 387, 823, 1249, 2469, 3747, 7407, 11241, 35389, 53707, 106167, 161121, 318501, 483363, 1027927, 3083781, 9251343, 44200861, 132602583, 397807749]

約数ペア:

[(1, 397807749), (3, 132602583), (9, 44200861), (43, 9251343), (129, 3083781), (387, 1027927), (823, 483363), (1249, 318501), (2469, 161121), (3747, 106167), (7407, 53707), (11241, 35389)]