28481691

素因数分解:

$3^1\times 7^3\times {\mathrm{89}}^1\times {\mathrm{311}}^1$

素因数の和:424

約数の個数: 32

約数和(自身を含む): 44928000

約数和(自身を除く): 16446309

約数列:

[1, 3, 7, 21, 49, 89, 147, 267, 311, 343, 623, 933, 1029, 1869, 2177, 4361, 6531, 13083, 15239, 27679, 30527, 45717, 83037, 91581, 106673, 193753, 320019, 581259, 1356271, 4068813, 9493897, 28481691]

約数ペア:

[(1, 28481691), (3, 9493897), (7, 4068813), (21, 1356271), (49, 581259), (89, 320019), (147, 193753), (267, 106673), (311, 91581), (343, 83037), (623, 45717), (933, 30527), (1029, 27679), (1869, 15239), (2177, 13083), (4361, 6531)]