21542589

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{739}}^1$

素因数の和:865

約数の個数: 24

約数和(自身を含む): 32323200

約数和(自身を除く): 10780611

約数列:

[1, 3, 9, 41, 79, 123, 237, 369, 711, 739, 2217, 3239, 6651, 9717, 29151, 30299, 58381, 90897, 175143, 272691, 525429, 2393621, 7180863, 21542589]

約数ペア:

[(1, 21542589), (3, 7180863), (9, 2393621), (41, 525429), (79, 272691), (123, 175143), (237, 90897), (369, 58381), (711, 30299), (739, 29151), (2217, 9717), (3239, 6651)]