21026356

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{3779}}^1$

素因数の和:3903

約数の個数: 24

約数和(自身を含む): 40007520

約数和(自身を除く): 18981164

約数列:

[1, 2, 4, 13, 26, 52, 107, 214, 428, 1391, 2782, 3779, 5564, 7558, 15116, 49127, 98254, 196508, 404353, 808706, 1617412, 5256589, 10513178, 21026356]

約数ペア:

[(1, 21026356), (2, 10513178), (4, 5256589), (13, 1617412), (26, 808706), (52, 404353), (107, 196508), (214, 98254), (428, 49127), (1391, 15116), (2782, 7558), (3779, 5564)]