19784176

素因数分解:

$2^4\times {\mathrm{577}}^1\times {\mathrm{2143}}^1$

素因数の和:2728

約数の個数: 20

約数和(自身を含む): 38416192

約数和(自身を除く): 18632016

約数列:

[1, 2, 4, 8, 16, 577, 1154, 2143, 2308, 4286, 4616, 8572, 9232, 17144, 34288, 1236511, 2473022, 4946044, 9892088, 19784176]

約数ペア:

[(1, 19784176), (2, 9892088), (4, 4946044), (8, 2473022), (16, 1236511), (577, 34288), (1154, 17144), (2143, 9232), (2308, 8572), (4286, 4616)]