20604525

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{6389}}^1$

素因数の和:6445

約数の個数: 24

約数和(自身を含む): 34863840

約数和(自身を除く): 14259315

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 3225, 6389, 19167, 31945, 95835, 159725, 274727, 479175, 824181, 1373635, 4120905, 6868175, 20604525]

約数ペア:

[(1, 20604525), (3, 6868175), (5, 4120905), (15, 1373635), (25, 824181), (43, 479175), (75, 274727), (129, 159725), (215, 95835), (645, 31945), (1075, 19167), (3225, 6389)]