20487771

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{359}}^1\times {\mathrm{373}}^1$

素因数の和:755

約数の個数: 24

約数和(自身を含む): 31505760

約数和(自身を除く): 11017989

約数列:

[1, 3, 9, 17, 51, 153, 359, 373, 1077, 1119, 3231, 3357, 6103, 6341, 18309, 19023, 54927, 57069, 133907, 401721, 1205163, 2276419, 6829257, 20487771]

約数ペア:

[(1, 20487771), (3, 6829257), (9, 2276419), (17, 1205163), (51, 401721), (153, 133907), (359, 57069), (373, 54927), (1077, 19023), (1119, 18309), (3231, 6341), (3357, 6103)]