20723717

素因数分解:

$7^3\times {\mathrm{31}}^1\times {\mathrm{1949}}^1$

素因数の和:2001

約数の個数: 16

約数和(自身を含む): 24960000

約数和(自身を除く): 4236283

約数列:

[1, 7, 31, 49, 217, 343, 1519, 1949, 10633, 13643, 60419, 95501, 422933, 668507, 2960531, 20723717]

約数ペア:

[(1, 20723717), (7, 2960531), (31, 668507), (49, 422933), (217, 95501), (343, 60419), (1519, 13643), (1949, 10633)]