20217621

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{2593}}^1$

素因数の和:2732

約数の個数: 16

約数和(自身を含む): 28388736

約数和(自身を除く): 8171115

約数列:

[1, 3, 23, 69, 113, 339, 2593, 2599, 7779, 7797, 59639, 178917, 293009, 879027, 6739207, 20217621]

約数ペア:

[(1, 20217621), (3, 6739207), (23, 879027), (69, 293009), (113, 178917), (339, 59639), (2593, 7797), (2599, 7779)]