17520219

素因数分解:

$3^4\times {\mathrm{73}}^1\times {\mathrm{2963}}^1$

素因数の和:3048

約数の個数: 20

約数和(自身を含む): 26539656

約数和(自身を除く): 9019437

約数列:

[1, 3, 9, 27, 73, 81, 219, 657, 1971, 2963, 5913, 8889, 26667, 80001, 216299, 240003, 648897, 1946691, 5840073, 17520219]

約数ペア:

[(1, 17520219), (3, 5840073), (9, 1946691), (27, 648897), (73, 240003), (81, 216299), (219, 80001), (657, 26667), (1971, 8889), (2963, 5913)]