21084349

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{521}}^1$

素因数の和:828

約数の個数: 16

約数和(自身を含む): 24905664

約数和(自身を除く): 3821315

約数列:

[1, 11, 13, 143, 283, 521, 3113, 3679, 5731, 6773, 40469, 74503, 147443, 1621873, 1916759, 21084349]

約数ペア:

[(1, 21084349), (11, 1916759), (13, 1621873), (143, 147443), (283, 74503), (521, 40469), (3113, 6773), (3679, 5731)]