20685568

素因数分解:

$2^8\times {\mathrm{80803}}^1$

素因数の和:80819

約数の個数: 18

約数和(自身を含む): 41290844

約数和(自身を除く): 20605276

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 80803, 161606, 323212, 646424, 1292848, 2585696, 5171392, 10342784, 20685568]

約数ペア:

[(1, 20685568), (2, 10342784), (4, 5171392), (8, 2585696), (16, 1292848), (32, 646424), (64, 323212), (128, 161606), (256, 80803)]