20786845

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{887}}^1$

素因数の和:1044

約数の個数: 16

約数和(自身を含む): 25787520

約数和(自身を除く): 5000675

約数列:

[1, 5, 43, 109, 215, 545, 887, 4435, 4687, 23435, 38141, 96683, 190705, 483415, 4157369, 20786845]

約数ペア:

[(1, 20786845), (5, 4157369), (43, 483415), (109, 190705), (215, 96683), (545, 38141), (887, 23435), (4435, 4687)]