18947493

素因数分解:

$3^3\times {\mathrm{571}}^1\times {\mathrm{1229}}^1$

素因数の和:1809

約数の個数: 16

約数和(自身を含む): 28142400

約数和(自身を除く): 9194907

約数列:

[1, 3, 9, 27, 571, 1229, 1713, 3687, 5139, 11061, 15417, 33183, 701759, 2105277, 6315831, 18947493]

約数ペア:

[(1, 18947493), (3, 6315831), (9, 2105277), (27, 701759), (571, 33183), (1229, 15417), (1713, 11061), (3687, 5139)]