20681012

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{443}}^1\times {\mathrm{1061}}^1$

素因数の和:1519

約数の個数: 24

約数和(自身を含む): 39608352

約数和(自身を除く): 18927340

約数列:

[1, 2, 4, 11, 22, 44, 443, 886, 1061, 1772, 2122, 4244, 4873, 9746, 11671, 19492, 23342, 46684, 470023, 940046, 1880092, 5170253, 10340506, 20681012]

約数ペア:

[(1, 20681012), (2, 10340506), (4, 5170253), (11, 1880092), (22, 940046), (44, 470023), (443, 46684), (886, 23342), (1061, 19492), (1772, 11671), (2122, 9746), (4244, 4873)]