17937020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{20857}}^1$

素因数の和:20909

約数の個数: 24

約数和(自身を含む): 38545584

約数和(自身を除く): 20608564

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 20857, 41714, 83428, 104285, 208570, 417140, 896851, 1793702, 3587404, 4484255, 8968510, 17937020]

約数ペア:

[(1, 17937020), (2, 8968510), (4, 4484255), (5, 3587404), (10, 1793702), (20, 896851), (43, 417140), (86, 208570), (172, 104285), (215, 83428), (430, 41714), (860, 20857)]