2561301

素因数分解:

$3^4\times {\mathrm{103}}^1\times {\mathrm{307}}^1$

素因数の和:422

約数の個数: 20

約数和(自身を含む): 3875872

約数和(自身を除く): 1314571

約数列:

[1, 3, 9, 27, 81, 103, 307, 309, 921, 927, 2763, 2781, 8289, 8343, 24867, 31621, 94863, 284589, 853767, 2561301]

約数ペア:

[(1, 2561301), (3, 853767), (9, 284589), (27, 94863), (81, 31621), (103, 24867), (307, 8343), (309, 8289), (921, 2781), (927, 2763)]