20120681799

素因数分解:

$3^4\times {\mathrm{83}}^1\times {\mathrm{109}}^1\times {\mathrm{27457}}^1$

素因数の和:27661

約数の個数: 40

約数和(自身を含む): 30699142320

約数和(自身を除く): 10578460521

約数列:

[1, 3, 9, 27, 81, 83, 109, 249, 327, 747, 981, 2241, 2943, 6723, 8829, 9047, 27141, 27457, 81423, 82371, 244269, 247113, 732807, 741339, 2224017, 2278931, 2992813, 6836793, 8978439, 20510379, 26935317, 61531137, 80805951, 184593411, 242417853, 248403479, 745210437, 2235631311, 6706893933, 20120681799]

約数ペア:

[(1, 20120681799), (3, 6706893933), (9, 2235631311), (27, 745210437), (81, 248403479), (83, 242417853), (109, 184593411), (249, 80805951), (327, 61531137), (747, 26935317), (981, 20510379), (2241, 8978439), (2943, 6836793), (6723, 2992813), (8829, 2278931), (9047, 2224017), (27141, 741339), (27457, 732807), (81423, 247113), (82371, 244269)]