20806604

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{4397}}^1$

素因数の和:4434

約数の個数: 36

約数和(自身を含む): 45070704

約数和(自身を除く): 24264100

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 169, 182, 338, 364, 676, 1183, 2366, 4397, 4732, 8794, 17588, 30779, 57161, 61558, 114322, 123116, 228644, 400127, 743093, 800254, 1486186, 1600508, 2972372, 5201651, 10403302, 20806604]

約数ペア:

[(1, 20806604), (2, 10403302), (4, 5201651), (7, 2972372), (13, 1600508), (14, 1486186), (26, 800254), (28, 743093), (52, 400127), (91, 228644), (169, 123116), (182, 114322), (338, 61558), (364, 57161), (676, 30779), (1183, 17588), (2366, 8794), (4397, 4732)]