20161999

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{509}}^1$

素因数の和:810

約数の個数: 16

約数和(自身を含む): 23819040

約数和(自身を除く): 3657041

約数列:

[1, 11, 13, 143, 277, 509, 3047, 3601, 5599, 6617, 39611, 72787, 140993, 1550923, 1832909, 20161999]

約数ペア:

[(1, 20161999), (11, 1832909), (13, 1550923), (143, 140993), (277, 72787), (509, 39611), (3047, 6617), (3601, 5599)]