20040378477

素因数分解:

$3^1\times 7^1\times {\mathrm{7907}}^1\times {\mathrm{120691}}^1$

素因数の和:128608

約数の個数: 16

約数和(自身を含む): 30541834752

約数和(自身を除く): 10501456275

約数列:

[1, 3, 7, 21, 7907, 23721, 55349, 120691, 166047, 362073, 844837, 2534511, 954303737, 2862911211, 6680126159, 20040378477]

約数ペア:

[(1, 20040378477), (3, 6680126159), (7, 2862911211), (21, 954303737), (7907, 2534511), (23721, 844837), (55349, 362073), (120691, 166047)]