19899503

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{709}}^1$

素因数の和:866

約数の個数: 16

約数和(自身を含む): 22901760

約数和(自身を除く): 3002257

約数列:

[1, 13, 17, 127, 221, 709, 1651, 2159, 9217, 12053, 28067, 90043, 156689, 1170559, 1530731, 19899503]

約数ペア:

[(1, 19899503), (13, 1530731), (17, 1170559), (127, 156689), (221, 90043), (709, 28067), (1651, 12053), (2159, 9217)]