28006587

素因数分解:

$3^3\times 7^2\times {\mathrm{21169}}^1$

素因数の和:21192

約数の個数: 24

約数和(自身を含む): 48267600

約数和(自身を除く): 20261013

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 21169, 63507, 148183, 190521, 444549, 571563, 1037281, 1333647, 3111843, 4000941, 9335529, 28006587]

約数ペア:

[(1, 28006587), (3, 9335529), (7, 4000941), (9, 3111843), (21, 1333647), (27, 1037281), (49, 571563), (63, 444549), (147, 190521), (189, 148183), (441, 63507), (1323, 21169)]