28520261

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{2141}}^1$

素因数の和:2332

約数の個数: 16

約数和(自身を含む): 35779968

約数和(自身を除く): 7259707

約数列:

[1, 7, 11, 77, 173, 1211, 1903, 2141, 13321, 14987, 23551, 164857, 370393, 2592751, 4074323, 28520261]

約数ペア:

[(1, 28520261), (7, 4074323), (11, 2592751), (77, 370393), (173, 164857), (1211, 23551), (1903, 14987), (2141, 13321)]