20393485

素因数分解:

$5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{5657}}^1$

素因数の和:5772

約数の個数: 16

約数和(自身を含む): 28244736

約数和(自身を除く): 7851251

約数列:

[1, 5, 7, 35, 103, 515, 721, 3605, 5657, 28285, 39599, 197995, 582671, 2913355, 4078697, 20393485]

約数ペア:

[(1, 20393485), (5, 4078697), (7, 2913355), (35, 582671), (103, 197995), (515, 39599), (721, 28285), (3605, 5657)]