20975701

素因数分解:

${\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{167}}^1$

素因数の和:360

約数の個数: 16

約数和(自身を含む): 22708224

約数和(自身を除く): 1732523

約数列:

[1, 23, 43, 127, 167, 989, 2921, 3841, 5461, 7181, 21209, 125603, 165163, 487807, 911987, 20975701]

約数ペア:

[(1, 20975701), (23, 911987), (43, 487807), (127, 165163), (167, 125603), (989, 21209), (2921, 7181), (3841, 5461)]