20597185

素因数分解:

$5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{5399}}^1$

素因数の和:5520

約数の個数: 16

約数和(自身を含む): 28512000

約数和(自身を除く): 7914815

約数列:

[1, 5, 7, 35, 109, 545, 763, 3815, 5399, 26995, 37793, 188965, 588491, 2942455, 4119437, 20597185]

約数ペア:

[(1, 20597185), (5, 4119437), (7, 2942455), (35, 588491), (109, 188965), (545, 37793), (763, 26995), (3815, 5399)]