20490858

素因数分解:

$2^1\times 3^2\times {\mathrm{313}}^1\times {\mathrm{3637}}^1$

素因数の和:3958

約数の個数: 24

約数和(自身を含む): 44550948

約数和(自身を除く): 24060090

約数列:

[1, 2, 3, 6, 9, 18, 313, 626, 939, 1878, 2817, 3637, 5634, 7274, 10911, 21822, 32733, 65466, 1138381, 2276762, 3415143, 6830286, 10245429, 20490858]

約数ペア:

[(1, 20490858), (2, 10245429), (3, 6830286), (6, 3415143), (9, 2276762), (18, 1138381), (313, 65466), (626, 32733), (939, 21822), (1878, 10911), (2817, 7274), (3637, 5634)]