21416391

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{457}}^1$

素因数の和:631

約数の個数: 24

約数和(自身を含む): 32008704

約数和(自身を除く): 10592313

約数列:

[1, 3, 9, 41, 123, 127, 369, 381, 457, 1143, 1371, 4113, 5207, 15621, 18737, 46863, 56211, 58039, 168633, 174117, 522351, 2379599, 7138797, 21416391]

約数ペア:

[(1, 21416391), (3, 7138797), (9, 2379599), (41, 522351), (123, 174117), (127, 168633), (369, 58039), (381, 56211), (457, 46863), (1143, 18737), (1371, 15621), (4113, 5207)]