21808756

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{2341}}^1$

素因数の和:2499

約数の個数: 24

約数和(自身を含む): 40722696

約数和(自身を除く): 18913940

約数列:

[1, 2, 4, 17, 34, 68, 137, 274, 548, 2329, 2341, 4658, 4682, 9316, 9364, 39797, 79594, 159188, 320717, 641434, 1282868, 5452189, 10904378, 21808756]

約数ペア:

[(1, 21808756), (2, 10904378), (4, 5452189), (17, 1282868), (34, 641434), (68, 320717), (137, 159188), (274, 79594), (548, 39797), (2329, 9364), (2341, 9316), (4658, 4682)]