21897920

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{6221}}^1$

素因数の和:6249

約数の個数: 56

約数和(自身を含む): 56893968

約数和(自身を除く): 34996048

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 220, 320, 352, 440, 704, 880, 1760, 3520, 6221, 12442, 24884, 31105, 49768, 62210, 68431, 99536, 124420, 136862, 199072, 248840, 273724, 342155, 398144, 497680, 547448, 684310, 995360, 1094896, 1368620, 1990720, 2189792, 2737240, 4379584, 5474480, 10948960, 21897920]

約数ペア:

[(1, 21897920), (2, 10948960), (4, 5474480), (5, 4379584), (8, 2737240), (10, 2189792), (11, 1990720), (16, 1368620), (20, 1094896), (22, 995360), (32, 684310), (40, 547448), (44, 497680), (55, 398144), (64, 342155), (80, 273724), (88, 248840), (110, 199072), (160, 136862), (176, 124420), (220, 99536), (320, 68431), (352, 62210), (440, 49768), (704, 31105), (880, 24884), (1760, 12442), (3520, 6221)]