90210861

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{43}}^2\times {\mathrm{139}}^1$

素因数の和:247

約数の個数: 48

約数和(自身を含む): 148411200

約数和(自身を除く): 58200339

約数列:

[1, 3, 9, 13, 27, 39, 43, 117, 129, 139, 351, 387, 417, 559, 1161, 1251, 1677, 1807, 1849, 3753, 5031, 5421, 5547, 5977, 15093, 16263, 16641, 17931, 24037, 48789, 49923, 53793, 72111, 77701, 161379, 216333, 233103, 257011, 648999, 699309, 771033, 2097927, 2313099, 3341143, 6939297, 10023429, 30070287, 90210861]

約数ペア:

[(1, 90210861), (3, 30070287), (9, 10023429), (13, 6939297), (27, 3341143), (39, 2313099), (43, 2097927), (117, 771033), (129, 699309), (139, 648999), (351, 257011), (387, 233103), (417, 216333), (559, 161379), (1161, 77701), (1251, 72111), (1677, 53793), (1807, 49923), (1849, 48789), (3753, 24037), (5031, 17931), (5421, 16641), (5547, 16263), (5977, 15093)]