28312249

素因数分解:

$7^3\times {\mathrm{197}}^1\times {\mathrm{419}}^1$

素因数の和:637

約数の個数: 16

約数和(自身を含む): 33264000

約数和(自身を除く): 4951751

約数列:

[1, 7, 49, 197, 343, 419, 1379, 2933, 9653, 20531, 67571, 82543, 143717, 577801, 4044607, 28312249]

約数ペア:

[(1, 28312249), (7, 4044607), (49, 577801), (197, 143717), (343, 82543), (419, 67571), (1379, 20531), (2933, 9653)]