261238109

素因数分解:

${\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{331}}^1\times {\mathrm{457}}^1$

素因数の和:956

約数の個数: 16

約数和(自身を含む): 288298176

約数和(自身を除く): 27060067

約数列:

[1, 11, 157, 331, 457, 1727, 3641, 5027, 51967, 71749, 151267, 571637, 789239, 1663937, 23748919, 261238109]

約数ペア:

[(1, 261238109), (11, 23748919), (157, 1663937), (331, 789239), (457, 571637), (1727, 151267), (3641, 71749), (5027, 51967)]