20426651

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{691}}^1$

素因数の和:842

約数の個数: 16

約数和(自身を含む): 24181248

約数和(自身を除く): 3754597

約数列:

[1, 7, 41, 103, 287, 691, 721, 4223, 4837, 28331, 29561, 71173, 198317, 498211, 2918093, 20426651]

約数ペア:

[(1, 20426651), (7, 2918093), (41, 498211), (103, 198317), (287, 71173), (691, 29561), (721, 28331), (4223, 4837)]