20399661

素因数分解:

$3^3\times {\mathrm{431}}^1\times {\mathrm{1753}}^1$

素因数の和:2193

約数の個数: 16

約数和(自身を含む): 30309120

約数和(自身を除く): 9909459

約数列:

[1, 3, 9, 27, 431, 1293, 1753, 3879, 5259, 11637, 15777, 47331, 755543, 2266629, 6799887, 20399661]

約数ペア:

[(1, 20399661), (3, 6799887), (9, 2266629), (27, 755543), (431, 47331), (1293, 15777), (1753, 11637), (3879, 5259)]