20839821

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{2213}}^1$

素因数の和:2332

約数の個数: 16

約数和(自身を含む): 28835136

約数和(自身を除く): 7995315

約数列:

[1, 3, 43, 73, 129, 219, 2213, 3139, 6639, 9417, 95159, 161549, 285477, 484647, 6946607, 20839821]

約数ペア:

[(1, 20839821), (3, 6946607), (43, 484647), (73, 285477), (129, 161549), (219, 95159), (2213, 9417), (3139, 6639)]