28704879

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{11113}}^1$

素因数の和:11167

約数の個数: 24

約数和(自身を含む): 48545952

約数和(自身を除く): 19841073

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 11113, 33339, 77791, 100017, 233373, 455633, 700119, 1366899, 3189431, 4100697, 9568293, 28704879]

約数ペア:

[(1, 28704879), (3, 9568293), (7, 4100697), (9, 3189431), (21, 1366899), (41, 700119), (63, 455633), (123, 233373), (287, 100017), (369, 77791), (861, 33339), (2583, 11113)]