17987618

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{239}}^1\times {\mathrm{311}}^1$

素因数の和:574

約数の個数: 24

約数和(自身を含む): 29877120

約数和(自身を除く): 11889502

約数列:

[1, 2, 11, 22, 121, 239, 242, 311, 478, 622, 2629, 3421, 5258, 6842, 28919, 37631, 57838, 74329, 75262, 148658, 817619, 1635238, 8993809, 17987618]

約数ペア:

[(1, 17987618), (2, 8993809), (11, 1635238), (22, 817619), (121, 148658), (239, 75262), (242, 74329), (311, 57838), (478, 37631), (622, 28919), (2629, 6842), (3421, 5258)]