19809455

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{463}}^1$

素因数の和:710

約数の個数: 16

約数和(自身を含む): 24499200

約数和(自身を除く): 4689745

約数列:

[1, 5, 43, 199, 215, 463, 995, 2315, 8557, 19909, 42785, 92137, 99545, 460685, 3961891, 19809455]

約数ペア:

[(1, 19809455), (5, 3961891), (43, 460685), (199, 99545), (215, 92137), (463, 42785), (995, 19909), (2315, 8557)]