20217776

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{12511}}^1$

素因数の和:12620

約数の個数: 20

約数和(自身を含む): 39562944

約数和(自身を除く): 19345168

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 808, 1616, 12511, 25022, 50044, 100088, 200176, 1263611, 2527222, 5054444, 10108888, 20217776]

約数ペア:

[(1, 20217776), (2, 10108888), (4, 5054444), (8, 2527222), (16, 1263611), (101, 200176), (202, 100088), (404, 50044), (808, 25022), (1616, 12511)]