12218787

素因数分解:

$3^2\times 7^2\times {\mathrm{103}}^1\times {\mathrm{269}}^1$

素因数の和:392

約数の個数: 36

約数和(自身を含む): 20807280

約数和(自身を除く): 8588493

約数列:

[1, 3, 7, 9, 21, 49, 63, 103, 147, 269, 309, 441, 721, 807, 927, 1883, 2163, 2421, 5047, 5649, 6489, 13181, 15141, 16947, 27707, 39543, 45423, 83121, 118629, 193949, 249363, 581847, 1357643, 1745541, 4072929, 12218787]

約数ペア:

[(1, 12218787), (3, 4072929), (7, 1745541), (9, 1357643), (21, 581847), (49, 249363), (63, 193949), (103, 118629), (147, 83121), (269, 45423), (309, 39543), (441, 27707), (721, 16947), (807, 15141), (927, 13181), (1883, 6489), (2163, 5649), (2421, 5047)]