21794913

素因数分解:

$3^6\times 7^1\times {\mathrm{4271}}^1$

素因数の和:4296

約数の個数: 28

約数和(自身を含む): 37354368

約数和(自身を除く): 15559455

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 4271, 5103, 12813, 29897, 38439, 89691, 115317, 269073, 345951, 807219, 1037853, 2421657, 3113559, 7264971, 21794913]

約数ペア:

[(1, 21794913), (3, 7264971), (7, 3113559), (9, 2421657), (21, 1037853), (27, 807219), (63, 345951), (81, 269073), (189, 115317), (243, 89691), (567, 38439), (729, 29897), (1701, 12813), (4271, 5103)]