18288747

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{5507}}^1$

素因数の和:5560

約数の個数: 20

約数和(自身を含む): 27991656

約数和(自身を除く): 9702909

約数列:

[1, 3, 9, 27, 41, 81, 123, 369, 1107, 3321, 5507, 16521, 49563, 148689, 225787, 446067, 677361, 2032083, 6096249, 18288747]

約数ペア:

[(1, 18288747), (3, 6096249), (9, 2032083), (27, 677361), (41, 446067), (81, 225787), (123, 148689), (369, 49563), (1107, 16521), (3321, 5507)]