19803485

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{1531}}^1$

素因数の和:1748

約数の個数: 16

約数和(自身を含む): 25737600

約数和(自身を除く): 5934115

約数列:

[1, 5, 13, 65, 199, 995, 1531, 2587, 7655, 12935, 19903, 99515, 304669, 1523345, 3960697, 19803485]

約数ペア:

[(1, 19803485), (5, 3960697), (13, 1523345), (65, 304669), (199, 99515), (995, 19903), (1531, 12935), (2587, 7655)]