28247571

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{25939}}^1$

素因数の和:25967

約数の個数: 18

約数和(自身を含む): 44850260

約数和(自身を除く): 16602689

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 25939, 77817, 233451, 285329, 855987, 2567961, 3138619, 9415857, 28247571]

約数ペア:

[(1, 28247571), (3, 9415857), (9, 3138619), (11, 2567961), (33, 855987), (99, 285329), (121, 233451), (363, 77817), (1089, 25939)]