19964391

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{3251}}^1$

素因数の和:3366

約数の個数: 16

約数和(自身を含む): 28097280

約数和(自身を除く): 8132889

約数列:

[1, 3, 23, 69, 89, 267, 2047, 3251, 6141, 9753, 74773, 224319, 289339, 868017, 6654797, 19964391]

約数ペア:

[(1, 19964391), (3, 6654797), (23, 868017), (69, 289339), (89, 224319), (267, 74773), (2047, 9753), (3251, 6141)]