20837929

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{647}}^1$

素因数の和:804

約数の個数: 16

約数和(自身を含む): 24634368

約数和(自身を除く): 3796439

約数列:

[1, 7, 43, 107, 301, 647, 749, 4529, 4601, 27821, 32207, 69229, 194747, 484603, 2976847, 20837929]

約数ペア:

[(1, 20837929), (7, 2976847), (43, 484603), (107, 194747), (301, 69229), (647, 32207), (749, 27821), (4529, 4601)]