20669943

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{57899}}^1$

素因数の和:57926

約数の個数: 16

約数和(自身を含む): 33350400

約数和(自身を除く): 12680457

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 57899, 173697, 405293, 984283, 1215879, 2952849, 6889981, 20669943]

約数ペア:

[(1, 20669943), (3, 6889981), (7, 2952849), (17, 1215879), (21, 984283), (51, 405293), (119, 173697), (357, 57899)]