20671437

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{907}}^1$

素因数の和:1088

約数の個数: 16

約数和(自身を含む): 28242432

約数和(自身を除く): 7570995

約数列:

[1, 3, 71, 107, 213, 321, 907, 2721, 7597, 22791, 64397, 97049, 193191, 291147, 6890479, 20671437]

約数ペア:

[(1, 20671437), (3, 6890479), (71, 291147), (107, 193191), (213, 97049), (321, 64397), (907, 22791), (2721, 7597)]