81312341

素因数分解:

${\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{197}}^1\times {\mathrm{239}}^1$

素因数の和:604

約数の個数: 16

約数和(自身を含む): 90097920

約数和(自身を除く): 8785579

約数列:

[1, 11, 157, 197, 239, 1727, 2167, 2629, 30929, 37523, 47083, 340219, 412753, 517913, 7392031, 81312341]

約数ペア:

[(1, 81312341), (11, 7392031), (157, 517913), (197, 412753), (239, 340219), (1727, 47083), (2167, 37523), (2629, 30929)]