20938463

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{5351}}^1$

素因数の和:5414

約数の個数: 16

約数和(自身を含む): 26374656

約数和(自身を除く): 5436193

約数列:

[1, 7, 13, 43, 91, 301, 559, 3913, 5351, 37457, 69563, 230093, 486941, 1610651, 2991209, 20938463]

約数ペア:

[(1, 20938463), (7, 2991209), (13, 1610651), (43, 486941), (91, 230093), (301, 69563), (559, 37457), (3913, 5351)]