18400689

素因数分解:

$3^6\times {\mathrm{43}}^1\times {\mathrm{587}}^1$

素因数の和:648

約数の個数: 28

約数和(自身を含む): 28278096

約数和(自身を除く): 9877407

約数列:

[1, 3, 9, 27, 43, 81, 129, 243, 387, 587, 729, 1161, 1761, 3483, 5283, 10449, 15849, 25241, 31347, 47547, 75723, 142641, 227169, 427923, 681507, 2044521, 6133563, 18400689]

約数ペア:

[(1, 18400689), (3, 6133563), (9, 2044521), (27, 681507), (43, 427923), (81, 227169), (129, 142641), (243, 75723), (387, 47547), (587, 31347), (729, 25241), (1161, 15849), (1761, 10449), (3483, 5283)]