20168704821

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{997}}^1\times {\mathrm{156817}}^1$

素因数の和:157860

約数の個数: 16

約数和(自身を含む): 27544768064

約数和(自身を除く): 7376063243

約数列:

[1, 3, 43, 129, 997, 2991, 42871, 128613, 156817, 470451, 6743131, 20229393, 156346549, 469039647, 6722901607, 20168704821]

約数ペア:

[(1, 20168704821), (3, 6722901607), (43, 469039647), (129, 156346549), (997, 20229393), (2991, 6743131), (42871, 470451), (128613, 156817)]