20487215

素因数分解:

$5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{5683}}^1$

素因数の和:5798

約数の個数: 16

約数和(自身を含む): 28374528

約数和(自身を除く): 7887313

約数列:

[1, 5, 7, 35, 103, 515, 721, 3605, 5683, 28415, 39781, 198905, 585349, 2926745, 4097443, 20487215]

約数ペア:

[(1, 20487215), (5, 4097443), (7, 2926745), (35, 585349), (103, 198905), (515, 39781), (721, 28415), (3605, 5683)]