28766157

素因数分解:

$3^1\times 7^1\times {\mathrm{641}}^1\times {\mathrm{2137}}^1$

素因数の和:2788

約数の個数: 16

約数和(自身を含む): 43923072

約数和(自身を除く): 15156915

約数列:

[1, 3, 7, 21, 641, 1923, 2137, 4487, 6411, 13461, 14959, 44877, 1369817, 4109451, 9588719, 28766157]

約数ペア:

[(1, 28766157), (3, 9588719), (7, 4109451), (21, 1369817), (641, 44877), (1923, 14959), (2137, 13461), (4487, 6411)]