128895021

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{2143}}^1$

素因数の和:2353

約数の個数: 24

約数和(自身を含む): 191982336

約数和(自身を除く): 63087315

約数列:

[1, 3, 9, 41, 123, 163, 369, 489, 1467, 2143, 6429, 6683, 19287, 20049, 60147, 87863, 263589, 349309, 790767, 1047927, 3143781, 14321669, 42965007, 128895021]

約数ペア:

[(1, 128895021), (3, 42965007), (9, 14321669), (41, 3143781), (123, 1047927), (163, 790767), (369, 349309), (489, 263589), (1467, 87863), (2143, 60147), (6429, 20049), (6683, 19287)]