1815291

素因数分解:

$3^4\times {\mathrm{73}}^1\times {\mathrm{307}}^1$

素因数の和:392

約数の個数: 20

約数和(自身を含む): 2757832

約数和(自身を除く): 942541

約数列:

[1, 3, 9, 27, 73, 81, 219, 307, 657, 921, 1971, 2763, 5913, 8289, 22411, 24867, 67233, 201699, 605097, 1815291]

約数ペア:

[(1, 1815291), (3, 605097), (9, 201699), (27, 67233), (73, 24867), (81, 22411), (219, 8289), (307, 5913), (657, 2763), (921, 1971)]