19946997

素因数分解:

$3^2\times 7^1\times {\mathrm{479}}^1\times {\mathrm{661}}^1$

素因数の和:1153

約数の個数: 24

約数和(自身を含む): 33047040

約数和(自身を除く): 13100043

約数列:

[1, 3, 7, 9, 21, 63, 479, 661, 1437, 1983, 3353, 4311, 4627, 5949, 10059, 13881, 30177, 41643, 316619, 949857, 2216333, 2849571, 6648999, 19946997]

約数ペア:

[(1, 19946997), (3, 6648999), (7, 2849571), (9, 2216333), (21, 949857), (63, 316619), (479, 41643), (661, 30177), (1437, 13881), (1983, 10059), (3353, 5949), (4311, 4627)]