31254769

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 40803840

約数和(自身を除く): 9549071

約数列:

[1, 7, 13, 23, 91, 109, 137, 161, 299, 763, 959, 1417, 1781, 2093, 2507, 3151, 9919, 12467, 14933, 17549, 22057, 32591, 40963, 104531, 194129, 228137, 286741, 343459, 1358903, 2404213, 4464967, 31254769]

約数ペア:

[(1, 31254769), (7, 4464967), (13, 2404213), (23, 1358903), (91, 343459), (109, 286741), (137, 228137), (161, 194129), (299, 104531), (763, 40963), (959, 32591), (1417, 22057), (1781, 17549), (2093, 14933), (2507, 12467), (3151, 9919)]