7871157

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1213}}^1$

素因数の和:1329

約数の個数: 24

約数和(自身を含む): 13130624

約数和(自身を除く): 5259467

約数列:

[1, 3, 7, 9, 21, 63, 103, 309, 721, 927, 1213, 2163, 3639, 6489, 8491, 10917, 25473, 76419, 124939, 374817, 874573, 1124451, 2623719, 7871157]

約数ペア:

[(1, 7871157), (3, 2623719), (7, 1124451), (9, 874573), (21, 374817), (63, 124939), (103, 76419), (309, 25473), (721, 10917), (927, 8491), (1213, 6489), (2163, 3639)]