86557005

素因数分解:

$3^4\times 5^1\times {\mathrm{213721}}^1$

素因数の和:213738

約数の個数: 20

約数和(自身を含む): 155162172

約数和(自身を除く): 68605167

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 213721, 641163, 1068605, 1923489, 3205815, 5770467, 9617445, 17311401, 28852335, 86557005]

約数ペア:

[(1, 86557005), (3, 28852335), (5, 17311401), (9, 9617445), (15, 5770467), (27, 3205815), (45, 1923489), (81, 1068605), (135, 641163), (405, 213721)]