19979155

素因数分解:

$5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{5237}}^1$

素因数の和:5358

約数の個数: 16

約数和(自身を含む): 27656640

約数和(自身を除く): 7677485

約数列:

[1, 5, 7, 35, 109, 545, 763, 3815, 5237, 26185, 36659, 183295, 570833, 2854165, 3995831, 19979155]

約数ペア:

[(1, 19979155), (5, 3995831), (7, 2854165), (35, 570833), (109, 183295), (545, 36659), (763, 26185), (3815, 5237)]