20995894

素因数分解:

$2^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1\times {\mathrm{631}}^1$

素因数の和:891

約数の個数: 16

約数和(自身を含む): 32034816

約数和(自身を除く): 11038922

約数列:

[1, 2, 127, 131, 254, 262, 631, 1262, 16637, 33274, 80137, 82661, 160274, 165322, 10497947, 20995894]

約数ペア:

[(1, 20995894), (2, 10497947), (127, 165322), (131, 160274), (254, 82661), (262, 80137), (631, 33274), (1262, 16637)]