19658259

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{691}}^1$

素因数の和:835

約数の個数: 24

約数和(自身を含む): 29686800

約数和(自身を除く): 10028541

約数列:

[1, 3, 9, 29, 87, 109, 261, 327, 691, 981, 2073, 3161, 6219, 9483, 20039, 28449, 60117, 75319, 180351, 225957, 677871, 2184251, 6552753, 19658259]

約数ペア:

[(1, 19658259), (3, 6552753), (9, 2184251), (29, 677871), (87, 225957), (109, 180351), (261, 75319), (327, 60117), (691, 28449), (981, 20039), (2073, 9483), (3161, 6219)]