20247165

素因数分解:

$3^4\times 5^1\times {\mathrm{49993}}^1$

素因数の和:50010

約数の個数: 20

約数和(自身を含む): 36295644

約数和(自身を除く): 16048479

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 49993, 149979, 249965, 449937, 749895, 1349811, 2249685, 4049433, 6749055, 20247165]

約数ペア:

[(1, 20247165), (3, 6749055), (5, 4049433), (9, 2249685), (15, 1349811), (27, 749895), (45, 449937), (81, 249965), (135, 149979), (405, 49993)]