20512195

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{461}}^1\times {\mathrm{809}}^1$

素因数の和:1286

約数の個数: 16

約数和(自身を含む): 26943840

約数和(自身を除く): 6431645

約数列:

[1, 5, 11, 55, 461, 809, 2305, 4045, 5071, 8899, 25355, 44495, 372949, 1864745, 4102439, 20512195]

約数ペア:

[(1, 20512195), (5, 4102439), (11, 1864745), (55, 372949), (461, 44495), (809, 25355), (2305, 8899), (4045, 5071)]