18732395

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{809}}^1$

素因数の和:1246

約数の個数: 16

約数和(自身を含む): 24611040

約数和(自身を除く): 5878645

約数列:

[1, 5, 11, 55, 421, 809, 2105, 4045, 4631, 8899, 23155, 44495, 340589, 1702945, 3746479, 18732395]

約数ペア:

[(1, 18732395), (5, 3746479), (11, 1702945), (55, 340589), (421, 44495), (809, 23155), (2105, 8899), (4045, 4631)]