288520191

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{337}}^1\times {\mathrm{857}}^1$

素因数の和:1240

約数の個数: 32

約数和(自身を含む): 440806080

約数和(自身を除く): 152285889

約数列:

[1, 3, 9, 27, 37, 111, 333, 337, 857, 999, 1011, 2571, 3033, 7713, 9099, 12469, 23139, 31709, 37407, 95127, 112221, 285381, 288809, 336663, 856143, 866427, 2599281, 7797843, 10685933, 32057799, 96173397, 288520191]

約数ペア:

[(1, 288520191), (3, 96173397), (9, 32057799), (27, 10685933), (37, 7797843), (111, 2599281), (333, 866427), (337, 856143), (857, 336663), (999, 288809), (1011, 285381), (2571, 112221), (3033, 95127), (7713, 37407), (9099, 31709), (12469, 23139)]