28475223

素因数分解:

$3^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{1997}}^1$

素因数の和:2111

約数の個数: 24

約数和(自身を含む): 44643312

約数和(自身を除く): 16168089

約数列:

[1, 3, 7, 21, 49, 97, 147, 291, 679, 1997, 2037, 4753, 5991, 13979, 14259, 41937, 97853, 193709, 293559, 581127, 1355963, 4067889, 9491741, 28475223]

約数ペア:

[(1, 28475223), (3, 9491741), (7, 4067889), (21, 1355963), (49, 581127), (97, 293559), (147, 193709), (291, 97853), (679, 41937), (1997, 14259), (2037, 13979), (4753, 5991)]