20809911605

素因数分解:

$5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{4339919}}^1$

素因数の和:4340068

約数の個数: 16

約数和(自身を含む): 28747630080

約数和(自身を除く): 7937718475

約数列:

[1, 5, 7, 35, 137, 685, 959, 4795, 4339919, 21699595, 30379433, 151897165, 594568903, 2972844515, 4161982321, 20809911605]

約数ペア:

[(1, 20809911605), (5, 4161982321), (7, 2972844515), (35, 594568903), (137, 151897165), (685, 30379433), (959, 21699595), (4795, 4339919)]