21066357

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{1123}}^1$

素因数の和:1189

約数の個数: 24

約数和(自身を含む): 31265184

約数和(自身を除く): 10198827

約数列:

[1, 3, 13, 37, 39, 111, 169, 481, 507, 1123, 1443, 3369, 6253, 14599, 18759, 41551, 43797, 124653, 189787, 540163, 569361, 1620489, 7022119, 21066357]

約数ペア:

[(1, 21066357), (3, 7022119), (13, 1620489), (37, 569361), (39, 540163), (111, 189787), (169, 124653), (481, 43797), (507, 41551), (1123, 18759), (1443, 14599), (3369, 6253)]