38881431

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 66355200

約数和(自身を除く): 27473769

約数列:

[1, 3, 9, 17, 23, 27, 29, 51, 69, 87, 127, 153, 207, 261, 381, 391, 459, 493, 621, 667, 783, 1143, 1173, 1479, 2001, 2159, 2921, 3429, 3519, 3683, 4437, 6003, 6477, 8763, 10557, 11049, 11339, 13311, 18009, 19431, 26289, 33147, 34017, 49657, 58293, 62611, 78867, 84709, 99441, 102051, 148971, 187833, 254127, 306153, 446913, 563499, 762381, 1340739, 1440053, 1690497, 2287143, 4320159, 12960477, 38881431]

約数ペア:

[(1, 38881431), (3, 12960477), (9, 4320159), (17, 2287143), (23, 1690497), (27, 1440053), (29, 1340739), (51, 762381), (69, 563499), (87, 446913), (127, 306153), (153, 254127), (207, 187833), (261, 148971), (381, 102051), (391, 99441), (459, 84709), (493, 78867), (621, 62611), (667, 58293), (783, 49657), (1143, 34017), (1173, 33147), (1479, 26289), (2001, 19431), (2159, 18009), (2921, 13311), (3429, 11339), (3519, 11049), (3683, 10557), (4437, 8763), (6003, 6477)]