20720640003

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{16175363}}^1$

素因数の和:16175434

約数の個数: 16

約数和(自身を含む): 32091922176

約数和(自身を除く): 11371282173

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 16175363, 48526089, 113227541, 339682623, 986697143, 2960091429, 6906880001, 20720640003]

約数ペア:

[(1, 20720640003), (3, 6906880001), (7, 2960091429), (21, 986697143), (61, 339682623), (183, 113227541), (427, 48526089), (1281, 16175363)]