21891529

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{701}}^1$

素因数の和:896

約数の個数: 16

約数和(自身を含む): 25474176

約数和(自身を除く): 3582647

約数列:

[1, 11, 17, 167, 187, 701, 1837, 2839, 7711, 11917, 31229, 117067, 131087, 1287737, 1990139, 21891529]

約数ペア:

[(1, 21891529), (11, 1990139), (17, 1287737), (167, 131087), (187, 117067), (701, 31229), (1837, 11917), (2839, 7711)]