20804588

素因数分解:

$2^2\times 7^1\times {\mathrm{349}}^1\times {\mathrm{2129}}^1$

素因数の和:2489

約数の個数: 24

約数和(自身を含む): 41748000

約数和(自身を除く): 20943412

約数列:

[1, 2, 4, 7, 14, 28, 349, 698, 1396, 2129, 2443, 4258, 4886, 8516, 9772, 14903, 29806, 59612, 743021, 1486042, 2972084, 5201147, 10402294, 20804588]

約数ペア:

[(1, 20804588), (2, 10402294), (4, 5201147), (7, 2972084), (14, 1486042), (28, 743021), (349, 59612), (698, 29806), (1396, 14903), (2129, 9772), (2443, 8516), (4258, 4886)]