28140343

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{11789}}^1$

素因数の和:11838

約数の個数: 16

約数和(自身を含む): 36218880

約数和(自身を除く): 8078537

約数列:

[1, 7, 11, 31, 77, 217, 341, 2387, 11789, 82523, 129679, 365459, 907753, 2558213, 4020049, 28140343]

約数ペア:

[(1, 28140343), (7, 4020049), (11, 2558213), (31, 907753), (77, 365459), (217, 129679), (341, 82523), (2387, 11789)]