20421207

素因数分解:

$3^3\times {\mathrm{479}}^1\times {\mathrm{1579}}^1$

素因数の和:2067

約数の個数: 16

約数和(自身を含む): 30336000

約数和(自身を除く): 9914793

約数列:

[1, 3, 9, 27, 479, 1437, 1579, 4311, 4737, 12933, 14211, 42633, 756341, 2269023, 6807069, 20421207]

約数ペア:

[(1, 20421207), (3, 6807069), (9, 2269023), (27, 756341), (479, 42633), (1437, 14211), (1579, 12933), (4311, 4737)]