20447855

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{2207}}^1$

素因数の和:2338

約数の個数: 16

約数和(自身を含む): 26231040

約数和(自身を除く): 5783185

約数列:

[1, 5, 17, 85, 109, 545, 1853, 2207, 9265, 11035, 37519, 187595, 240563, 1202815, 4089571, 20447855]

約数ペア:

[(1, 20447855), (5, 4089571), (17, 1202815), (85, 240563), (109, 187595), (545, 37519), (1853, 11035), (2207, 9265)]