20773945

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{4201}}^1$

素因数の和:4272

約数の個数: 16

約数和(自身を含む): 26623872

約数和(自身を除く): 5849927

約数列:

[1, 5, 23, 43, 115, 215, 989, 4201, 4945, 21005, 96623, 180643, 483115, 903215, 4154789, 20773945]

約数ペア:

[(1, 20773945), (5, 4154789), (23, 903215), (43, 483115), (115, 180643), (215, 96623), (989, 21005), (4201, 4945)]