28140495

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{26423}}^1$

素因数の和:26502

約数の個数: 16

約数和(自身を含む): 45660672

約数和(自身を除く): 17520177

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 26423, 79269, 132115, 396345, 1876033, 5628099, 9380165, 28140495]

約数ペア:

[(1, 28140495), (3, 9380165), (5, 5628099), (15, 1876033), (71, 396345), (213, 132115), (355, 79269), (1065, 26423)]