28503741

素因数分解:

$3^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{1999}}^1$

素因数の和:2113

約数の個数: 24

約数和(自身を含む): 44688000

約数和(自身を除く): 16184259

約数列:

[1, 3, 7, 21, 49, 97, 147, 291, 679, 1999, 2037, 4753, 5997, 13993, 14259, 41979, 97951, 193903, 293853, 581709, 1357321, 4071963, 9501247, 28503741]

約数ペア:

[(1, 28503741), (3, 9501247), (7, 4071963), (21, 1357321), (49, 581709), (97, 293853), (147, 193903), (291, 97951), (679, 41979), (1999, 14259), (2037, 13993), (4753, 5997)]