20685535

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{2027}}^1$

素因数の和:2202

約数の個数: 16

約数和(自身を含む): 26915616

約数和(自身を除く): 6230081

約数列:

[1, 5, 13, 65, 157, 785, 2027, 2041, 10135, 10205, 26351, 131755, 318239, 1591195, 4137107, 20685535]

約数ペア:

[(1, 20685535), (5, 4137107), (13, 1591195), (65, 318239), (157, 131755), (785, 26351), (2027, 10205), (2041, 10135)]