20803321

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{3701}}^1$

素因数の和:3792

約数の個数: 16

約数和(自身を含む): 26299008

約数和(自身を除く): 5495687

約数列:

[1, 7, 11, 73, 77, 511, 803, 3701, 5621, 25907, 40711, 270173, 284977, 1891211, 2971903, 20803321]

約数ペア:

[(1, 20803321), (7, 2971903), (11, 1891211), (73, 284977), (77, 270173), (511, 40711), (803, 25907), (3701, 5621)]