18680049

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{127}}^1\times {\mathrm{277}}^1$

素因数の和:469

約数の個数: 24

約数和(自身を含む): 27755520

約数和(自身を除く): 9075471

約数列:

[1, 3, 9, 59, 127, 177, 277, 381, 531, 831, 1143, 2493, 7493, 16343, 22479, 35179, 49029, 67437, 105537, 147087, 316611, 2075561, 6226683, 18680049]

約数ペア:

[(1, 18680049), (3, 6226683), (9, 2075561), (59, 316611), (127, 147087), (177, 105537), (277, 67437), (381, 49029), (531, 35179), (831, 22479), (1143, 16343), (2493, 7493)]