81505123

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{307}}^1$

素因数の和:451

約数の個数: 32

約数和(自身を含む): 104315904

約数和(自身を除く): 22810781

約数列:

[1, 7, 17, 23, 97, 119, 161, 307, 391, 679, 1649, 2149, 2231, 2737, 5219, 7061, 11543, 15617, 29779, 36533, 37927, 49427, 120037, 208453, 265489, 506243, 684917, 840259, 3543701, 4794419, 11643589, 81505123]

約数ペア:

[(1, 81505123), (7, 11643589), (17, 4794419), (23, 3543701), (97, 840259), (119, 684917), (161, 506243), (307, 265489), (391, 208453), (679, 120037), (1649, 49427), (2149, 37927), (2231, 36533), (2737, 29779), (5219, 15617), (7061, 11543)]