21226305

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{32909}}^1$

素因数の和:32960

約数の個数: 16

約数和(自身を含む): 34752960

約数和(自身を除く): 13526655

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 32909, 98727, 164545, 493635, 1415087, 4245261, 7075435, 21226305]

約数ペア:

[(1, 21226305), (3, 7075435), (5, 4245261), (15, 1415087), (43, 493635), (129, 164545), (215, 98727), (645, 32909)]