28209797

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{443}}^1\times {\mathrm{827}}^1$

素因数の和:1288

約数の個数: 16

約数和(自身を含む): 35292672

約数和(自身を除く): 7082875

約数列:

[1, 7, 11, 77, 443, 827, 3101, 4873, 5789, 9097, 34111, 63679, 366361, 2564527, 4029971, 28209797]

約数ペア:

[(1, 28209797), (7, 4029971), (11, 2564527), (77, 366361), (443, 63679), (827, 34111), (3101, 9097), (4873, 5789)]