28138689

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{353}}^1\times {\mathrm{521}}^1$

素因数の和:897

約数の個数: 24

約数和(自身を含む): 43240392

約数和(自身を除く): 15101703

約数列:

[1, 3, 9, 17, 51, 153, 353, 521, 1059, 1563, 3177, 4689, 6001, 8857, 18003, 26571, 54009, 79713, 183913, 551739, 1655217, 3126521, 9379563, 28138689]

約数ペア:

[(1, 28138689), (3, 9379563), (9, 3126521), (17, 1655217), (51, 551739), (153, 183913), (353, 79713), (521, 54009), (1059, 26571), (1563, 18003), (3177, 8857), (4689, 6001)]