21647045

素因数分解:

$5^1\times 7^1\times {\mathrm{673}}^1\times {\mathrm{919}}^1$

素因数の和:1604

約数の個数: 16

約数和(自身を含む): 29763840

約数和(自身を除く): 8116795

約数列:

[1, 5, 7, 35, 673, 919, 3365, 4595, 4711, 6433, 23555, 32165, 618487, 3092435, 4329409, 21647045]

約数ペア:

[(1, 21647045), (5, 4329409), (7, 3092435), (35, 618487), (673, 32165), (919, 23555), (3365, 6433), (4595, 4711)]