18840465

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{19937}}^1$

素因数の和:19958

約数の個数: 32

約数和(自身を含む): 38280960

約数和(自身を除く): 19440495

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 19937, 59811, 99685, 139559, 179433, 299055, 418677, 538299, 697795, 897165, 1256031, 2093385, 2691495, 3768093, 6280155, 18840465]

約数ペア:

[(1, 18840465), (3, 6280155), (5, 3768093), (7, 2691495), (9, 2093385), (15, 1256031), (21, 897165), (27, 697795), (35, 538299), (45, 418677), (63, 299055), (105, 179433), (135, 139559), (189, 99685), (315, 59811), (945, 19937)]