20652255

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{821}}^1$

素因数の和:888

約数の個数: 48

約数和(自身を含む): 39495456

約数和(自身を除く): 18843201

約数列:

[1, 3, 5, 9, 13, 15, 39, 43, 45, 65, 117, 129, 195, 215, 387, 559, 585, 645, 821, 1677, 1935, 2463, 2795, 4105, 5031, 7389, 8385, 10673, 12315, 25155, 32019, 35303, 36945, 53365, 96057, 105909, 160095, 176515, 317727, 458939, 480285, 529545, 1376817, 1588635, 2294695, 4130451, 6884085, 20652255]

約数ペア:

[(1, 20652255), (3, 6884085), (5, 4130451), (9, 2294695), (13, 1588635), (15, 1376817), (39, 529545), (43, 480285), (45, 458939), (65, 317727), (117, 176515), (129, 160095), (195, 105909), (215, 96057), (387, 53365), (559, 36945), (585, 35303), (645, 32019), (821, 25155), (1677, 12315), (1935, 10673), (2463, 8385), (2795, 7389), (4105, 5031)]