20399152

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{17957}}^1$

素因数の和:18036

約数の個数: 20

約数和(自身を含む): 40082256

約数和(自身を除く): 19683104

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 17957, 35914, 71828, 143656, 287312, 1274947, 2549894, 5099788, 10199576, 20399152]

約数ペア:

[(1, 20399152), (2, 10199576), (4, 5099788), (8, 2549894), (16, 1274947), (71, 287312), (142, 143656), (284, 71828), (568, 35914), (1136, 17957)]