20979328

素因数分解:

$2^7\times {\mathrm{163901}}^1$

素因数の和:163915

約数の個数: 16

約数和(自身を含む): 41795010

約数和(自身を除く): 20815682

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 163901, 327802, 655604, 1311208, 2622416, 5244832, 10489664, 20979328]

約数ペア:

[(1, 20979328), (2, 10489664), (4, 5244832), (8, 2622416), (16, 1311208), (32, 655604), (64, 327802), (128, 163901)]