20504272

素因数分解:

$2^4\times {\mathrm{577}}^1\times {\mathrm{2221}}^1$

素因数の和:2806

約数の個数: 20

約数和(自身を含む): 39813796

約数和(自身を除く): 19309524

約数列:

[1, 2, 4, 8, 16, 577, 1154, 2221, 2308, 4442, 4616, 8884, 9232, 17768, 35536, 1281517, 2563034, 5126068, 10252136, 20504272]

約数ペア:

[(1, 20504272), (2, 10252136), (4, 5126068), (8, 2563034), (16, 1281517), (577, 35536), (1154, 17768), (2221, 9232), (2308, 8884), (4442, 4616)]