257371521

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{109847}}^1$

素因数の和:109932

約数の個数: 16

約数和(自身を含む): 379634688

約数和(自身を除く): 122263167

約数列:

[1, 3, 11, 33, 71, 213, 781, 2343, 109847, 329541, 1208317, 3624951, 7799137, 23397411, 85790507, 257371521]

約数ペア:

[(1, 257371521), (3, 85790507), (11, 23397411), (33, 7799137), (71, 3624951), (213, 1208317), (781, 329541), (2343, 109847)]