18913894

素因数分解:

$2^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{761}}^1$

素因数の和:840

約数の個数: 24

約数和(自身を含む): 30879288

約数和(自身を除く): 11965394

約数列:

[1, 2, 17, 34, 43, 86, 289, 578, 731, 761, 1462, 1522, 12427, 12937, 24854, 25874, 32723, 65446, 219929, 439858, 556291, 1112582, 9456947, 18913894]

約数ペア:

[(1, 18913894), (2, 9456947), (17, 1112582), (34, 556291), (43, 439858), (86, 219929), (289, 65446), (578, 32723), (731, 25874), (761, 24854), (1462, 12937), (1522, 12427)]