28140749

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{6311}}^1$

素因数の和:6345

約数の個数: 16

約数和(自身を含む): 35347200

約数和(自身を除く): 7206451

約数列:

[1, 7, 13, 49, 91, 343, 637, 4459, 6311, 44177, 82043, 309239, 574301, 2164673, 4020107, 28140749]

約数ペア:

[(1, 28140749), (7, 4020107), (13, 2164673), (49, 574301), (91, 309239), (343, 82043), (637, 44177), (4459, 6311)]