20789439268

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{399796909}}^1$

素因数の和:399796926

約数の個数: 12

約数和(自身を含む): 39180097180

約数和(自身を除く): 18390657912

約数列:

[1, 2, 4, 13, 26, 52, 399796909, 799593818, 1599187636, 5197359817, 10394719634, 20789439268]

約数ペア:

[(1, 20789439268), (2, 10394719634), (4, 5197359817), (13, 1599187636), (26, 799593818), (52, 399796909)]