31254993

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{379}}^1$

素因数の和:427

約数の個数: 72

約数和(自身を含む): 60821280

約数和(自身を除く): 29566287

約数列:

[1, 3, 7, 9, 11, 17, 21, 33, 49, 51, 63, 77, 99, 119, 147, 153, 187, 231, 357, 379, 441, 539, 561, 693, 833, 1071, 1137, 1309, 1617, 1683, 2499, 2653, 3411, 3927, 4169, 4851, 6443, 7497, 7959, 9163, 11781, 12507, 18571, 19329, 23877, 27489, 29183, 37521, 45101, 55713, 57987, 70873, 82467, 87549, 135303, 167139, 204281, 212619, 262647, 315707, 405909, 496111, 612843, 637857, 947121, 1488333, 1838529, 2841363, 3472777, 4464999, 10418331, 31254993]

約数ペア:

[(1, 31254993), (3, 10418331), (7, 4464999), (9, 3472777), (11, 2841363), (17, 1838529), (21, 1488333), (33, 947121), (49, 637857), (51, 612843), (63, 496111), (77, 405909), (99, 315707), (119, 262647), (147, 212619), (153, 204281), (187, 167139), (231, 135303), (357, 87549), (379, 82467), (441, 70873), (539, 57987), (561, 55713), (693, 45101), (833, 37521), (1071, 29183), (1137, 27489), (1309, 23877), (1617, 19329), (1683, 18571), (2499, 12507), (2653, 11781), (3411, 9163), (3927, 7959), (4169, 7497), (4851, 6443)]