19933615

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{2341}}^1$

素因数の和:2490

約数の個数: 16

約数和(自身を含む): 25968096

約数和(自身を除く): 6034481

約数列:

[1, 5, 13, 65, 131, 655, 1703, 2341, 8515, 11705, 30433, 152165, 306671, 1533355, 3986723, 19933615]

約数ペア:

[(1, 19933615), (5, 3986723), (13, 1533355), (65, 306671), (131, 152165), (655, 30433), (1703, 11705), (2341, 8515)]