18846027

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:225

約数の個数: 40

約数和(自身を含む): 29795040

約数和(自身を除く): 10949013

約数列:

[1, 3, 9, 27, 29, 71, 81, 87, 113, 213, 261, 339, 639, 783, 1017, 1917, 2059, 2349, 3051, 3277, 5751, 6177, 8023, 9153, 9831, 18531, 24069, 29493, 55593, 72207, 88479, 166779, 216621, 232667, 265437, 649863, 698001, 2094003, 6282009, 18846027]

約数ペア:

[(1, 18846027), (3, 6282009), (9, 2094003), (27, 698001), (29, 649863), (71, 265437), (81, 232667), (87, 216621), (113, 166779), (213, 88479), (261, 72207), (339, 55593), (639, 29493), (783, 24069), (1017, 18531), (1917, 9831), (2059, 9153), (2349, 8023), (3051, 6177), (3277, 5751)]