21081636

素因数分解:

$2^2\times 3^2\times {\mathrm{585601}}^1$

素因数の和:585611

約数の個数: 18

約数和(自身を含む): 53289782

約数和(自身を除く): 32208146

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 585601, 1171202, 1756803, 2342404, 3513606, 5270409, 7027212, 10540818, 21081636]

約数ペア:

[(1, 21081636), (2, 10540818), (3, 7027212), (4, 5270409), (6, 3513606), (9, 2342404), (12, 1756803), (18, 1171202), (36, 585601)]