21671163

素因数分解:

$3^2\times {\mathrm{571}}^1\times {\mathrm{4217}}^1$

素因数の和:4794

約数の個数: 12

約数和(自身を含む): 31365048

約数和(自身を除く): 9693885

約数列:

[1, 3, 9, 571, 1713, 4217, 5139, 12651, 37953, 2407907, 7223721, 21671163]

約数ペア:

[(1, 21671163), (3, 7223721), (9, 2407907), (571, 37953), (1713, 12651), (4217, 5139)]