21336021

素因数分解:

$3^3\times 7^2\times {\mathrm{16127}}^1$

素因数の和:16150

約数の個数: 24

約数和(自身を含む): 36771840

約数和(自身を除く): 15435819

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 16127, 48381, 112889, 145143, 338667, 435429, 790223, 1016001, 2370669, 3048003, 7112007, 21336021]

約数ペア:

[(1, 21336021), (3, 7112007), (7, 3048003), (9, 2370669), (21, 1016001), (27, 790223), (49, 435429), (63, 338667), (147, 145143), (189, 112889), (441, 48381), (1323, 16127)]