28157157

素因数分解:

$3^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{4177}}^1$

素因数の和:4297

約数の個数: 24

約数和(自身を含む): 46927296

約数和(自身を除く): 18770139

約数列:

[1, 3, 7, 9, 21, 63, 107, 321, 749, 963, 2247, 4177, 6741, 12531, 29239, 37593, 87717, 263151, 446939, 1340817, 3128573, 4022451, 9385719, 28157157]

約数ペア:

[(1, 28157157), (3, 9385719), (7, 4022451), (9, 3128573), (21, 1340817), (63, 446939), (107, 263151), (321, 87717), (749, 37593), (963, 29239), (2247, 12531), (4177, 6741)]