639244674

素因数分解:

$2^1\times 3^2\times {\mathrm{2861}}^1\times {\mathrm{12413}}^1$

素因数の和:15282

約数の個数: 24

約数和(自身を含む): 1385625852

約数和(自身を除く): 746381178

約数列:

[1, 2, 3, 6, 9, 18, 2861, 5722, 8583, 12413, 17166, 24826, 25749, 37239, 51498, 74478, 111717, 223434, 35513593, 71027186, 106540779, 213081558, 319622337, 639244674]

約数ペア:

[(1, 639244674), (2, 319622337), (3, 213081558), (6, 106540779), (9, 71027186), (18, 35513593), (2861, 223434), (5722, 111717), (8583, 74478), (12413, 51498), (17166, 37239), (24826, 25749)]