2051249427

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{20981}}^1$

素因数の和:21081

約数の個数: 40

約数和(自身を含む): 3290313312

約数和(自身を除く): 1239063885

約数列:

[1, 3, 9, 17, 27, 51, 71, 81, 153, 213, 459, 639, 1207, 1377, 1917, 3621, 5751, 10863, 20981, 32589, 62943, 97767, 188829, 356677, 566487, 1070031, 1489651, 1699461, 3210093, 4468953, 9630279, 13406859, 25324067, 28890837, 40220577, 75972201, 120661731, 227916603, 683749809, 2051249427]

約数ペア:

[(1, 2051249427), (3, 683749809), (9, 227916603), (17, 120661731), (27, 75972201), (51, 40220577), (71, 28890837), (81, 25324067), (153, 13406859), (213, 9630279), (459, 4468953), (639, 3210093), (1207, 1699461), (1377, 1489651), (1917, 1070031), (3621, 566487), (5751, 356677), (10863, 188829), (20981, 97767), (32589, 62943)]