20509467

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{739}}^1$

素因数の和:811

約数の個数: 24

約数和(自身を含む): 30937920

約数和(自身を除く): 10428453

約数列:

[1, 3, 11, 29, 33, 87, 319, 739, 841, 957, 2217, 2523, 8129, 9251, 21431, 24387, 27753, 64293, 235741, 621499, 707223, 1864497, 6836489, 20509467]

約数ペア:

[(1, 20509467), (3, 6836489), (11, 1864497), (29, 707223), (33, 621499), (87, 235741), (319, 64293), (739, 27753), (841, 24387), (957, 21431), (2217, 9251), (2523, 8129)]