2540781

素因数分解:

$3^3\times {\mathrm{139}}^1\times {\mathrm{677}}^1$

素因数の和:825

約数の個数: 16

約数和(自身を含む): 3796800

約数和(自身を除く): 1256019

約数列:

[1, 3, 9, 27, 139, 417, 677, 1251, 2031, 3753, 6093, 18279, 94103, 282309, 846927, 2540781]

約数ペア:

[(1, 2540781), (3, 846927), (9, 282309), (27, 94103), (139, 18279), (417, 6093), (677, 3753), (1251, 2031)]