21647188

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{449}}^1\times {\mathrm{709}}^1$

素因数の和:1179

約数の個数: 24

約数和(自身を含む): 40257000

約数和(自身を除く): 18609812

約数列:

[1, 2, 4, 17, 34, 68, 449, 709, 898, 1418, 1796, 2836, 7633, 12053, 15266, 24106, 30532, 48212, 318341, 636682, 1273364, 5411797, 10823594, 21647188]

約数ペア:

[(1, 21647188), (2, 10823594), (4, 5411797), (17, 1273364), (34, 636682), (68, 318341), (449, 48212), (709, 30532), (898, 24106), (1418, 15266), (1796, 12053), (2836, 7633)]