20409759

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{179}}^1$

素因数の和:332

約数の個数: 32

約数和(自身を含む): 31449600

約数和(自身を除く): 11039841

約数列:

[1, 3, 9, 27, 41, 103, 123, 179, 309, 369, 537, 927, 1107, 1611, 2781, 4223, 4833, 7339, 12669, 18437, 22017, 38007, 55311, 66051, 114021, 165933, 198153, 497799, 755917, 2267751, 6803253, 20409759]

約数ペア:

[(1, 20409759), (3, 6803253), (9, 2267751), (27, 755917), (41, 497799), (103, 198153), (123, 165933), (179, 114021), (309, 66051), (369, 55311), (537, 38007), (927, 22017), (1107, 18437), (1611, 12669), (2781, 7339), (4223, 4833)]