28639919

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{433}}^1\times {\mathrm{859}}^1$

素因数の和:1310

約数の個数: 16

約数和(自身を含む): 35831040

約数和(自身を除く): 7191121

約数列:

[1, 7, 11, 77, 433, 859, 3031, 4763, 6013, 9449, 33341, 66143, 371947, 2603629, 4091417, 28639919]

約数ペア:

[(1, 28639919), (7, 4091417), (11, 2603629), (77, 371947), (433, 66143), (859, 33341), (3031, 9449), (4763, 6013)]