20717824

素因数分解:

$2^8\times {\mathrm{80929}}^1$

素因数の和:80945

約数の個数: 18

約数和(自身を含む): 41355230

約数和(自身を除く): 20637406

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 80929, 161858, 323716, 647432, 1294864, 2589728, 5179456, 10358912, 20717824]

約数ペア:

[(1, 20717824), (2, 10358912), (4, 5179456), (8, 2589728), (16, 1294864), (32, 647432), (64, 323716), (128, 161858), (256, 80929)]