20519444

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{4127}}^1$

素因数の和:4255

約数の個数: 24

約数和(自身を含む): 39529728

約数和(自身を除く): 19010284

約数列:

[1, 2, 4, 11, 22, 44, 113, 226, 452, 1243, 2486, 4127, 4972, 8254, 16508, 45397, 90794, 181588, 466351, 932702, 1865404, 5129861, 10259722, 20519444]

約数ペア:

[(1, 20519444), (2, 10259722), (4, 5129861), (11, 1865404), (22, 932702), (44, 466351), (113, 181588), (226, 90794), (452, 45397), (1243, 16508), (2486, 8254), (4127, 4972)]