20719996

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{443}}^1\times {\mathrm{1063}}^1$

素因数の和:1521

約数の個数: 24

約数和(自身を含む): 39682944

約数和(自身を除く): 18962948

約数列:

[1, 2, 4, 11, 22, 44, 443, 886, 1063, 1772, 2126, 4252, 4873, 9746, 11693, 19492, 23386, 46772, 470909, 941818, 1883636, 5179999, 10359998, 20719996]

約数ペア:

[(1, 20719996), (2, 10359998), (4, 5179999), (11, 1883636), (22, 941818), (44, 470909), (443, 46772), (886, 23386), (1063, 19492), (1772, 11693), (2126, 9746), (4252, 4873)]