20804782

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{5501}}^1$

素因数の和:5595

約数の個数: 16

約数和(自身を含む): 32747904

約数和(自身を除く): 11943122

約数列:

[1, 2, 31, 61, 62, 122, 1891, 3782, 5501, 11002, 170531, 335561, 341062, 671122, 10402391, 20804782]

約数ペア:

[(1, 20804782), (2, 10402391), (31, 671122), (61, 341062), (62, 335561), (122, 170531), (1891, 11002), (3782, 5501)]