21266343

素因数分解:

$3^2\times 7^3\times {\mathrm{83}}^2$

素因数の和:193

約数の個数: 36

約数和(自身を含む): 36259600

約数和(自身を除く): 14993257

約数列:

[1, 3, 7, 9, 21, 49, 63, 83, 147, 249, 343, 441, 581, 747, 1029, 1743, 3087, 4067, 5229, 6889, 12201, 20667, 28469, 36603, 48223, 62001, 85407, 144669, 256221, 337561, 434007, 1012683, 2362927, 3038049, 7088781, 21266343]

約数ペア:

[(1, 21266343), (3, 7088781), (7, 3038049), (9, 2362927), (21, 1012683), (49, 434007), (63, 337561), (83, 256221), (147, 144669), (249, 85407), (343, 62001), (441, 48223), (581, 36603), (747, 28469), (1029, 20667), (1743, 12201), (3087, 6889), (4067, 5229)]