20997542

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{1579}}^1$

素因数の和:1751

約数の個数: 16

約数和(自身を含む): 32326800

約数和(自身を除く): 11329258

約数列:

[1, 2, 61, 109, 122, 218, 1579, 3158, 6649, 13298, 96319, 172111, 192638, 344222, 10498771, 20997542]

約数ペア:

[(1, 20997542), (2, 10498771), (61, 344222), (109, 192638), (122, 172111), (218, 96319), (1579, 13298), (3158, 6649)]