28744281

素因数分解:

$3^3\times {\mathrm{109}}^1\times {\mathrm{9767}}^1$

素因数の和:9885

約数の個数: 16

約数和(自身を含む): 42979200

約数和(自身を除く): 14234919

約数列:

[1, 3, 9, 27, 109, 327, 981, 2943, 9767, 29301, 87903, 263709, 1064603, 3193809, 9581427, 28744281]

約数ペア:

[(1, 28744281), (3, 9581427), (9, 3193809), (27, 1064603), (109, 263709), (327, 87903), (981, 29301), (2943, 9767)]