18431181

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{251}}^1$

素因数の和:497

約数の個数: 24

約数和(自身を含む): 27518400

約数和(自身を除く): 9087219

約数列:

[1, 3, 9, 41, 123, 199, 251, 369, 597, 753, 1791, 2259, 8159, 10291, 24477, 30873, 49949, 73431, 92619, 149847, 449541, 2047909, 6143727, 18431181]

約数ペア:

[(1, 18431181), (3, 6143727), (9, 2047909), (41, 449541), (123, 149847), (199, 92619), (251, 73431), (369, 49949), (597, 30873), (753, 24477), (1791, 10291), (2259, 8159)]