20579503

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:223

約数の個数: 32

約数和(自身を含む): 26597376

約数和(自身を除く): 6017873

約数列:

[1, 7, 17, 23, 73, 103, 119, 161, 391, 511, 721, 1241, 1679, 1751, 2369, 2737, 7519, 8687, 11753, 12257, 16583, 28543, 40273, 52633, 127823, 172937, 199801, 281911, 894761, 1210559, 2939929, 20579503]

約数ペア:

[(1, 20579503), (7, 2939929), (17, 1210559), (23, 894761), (73, 281911), (103, 199801), (119, 172937), (161, 127823), (391, 52633), (511, 40273), (721, 28543), (1241, 16583), (1679, 12257), (1751, 11753), (2369, 8687), (2737, 7519)]