4249989

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{739}}^1$

素因数の和:822

約数の個数: 20

約数和(自身を含む): 6446880

約数和(自身を除く): 2196891

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 739, 1917, 2217, 5751, 6651, 19953, 52469, 59859, 157407, 472221, 1416663, 4249989]

約数ペア:

[(1, 4249989), (3, 1416663), (9, 472221), (27, 157407), (71, 59859), (81, 52469), (213, 19953), (639, 6651), (739, 5751), (1917, 2217)]