18744290

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{21061}}^1$

素因数の和:21157

約数の個数: 16

約数和(自身を含む): 34120440

約数和(自身を除く): 15376150

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 21061, 42122, 105305, 210610, 1874429, 3748858, 9372145, 18744290]

約数ペア:

[(1, 18744290), (2, 9372145), (5, 3748858), (10, 1874429), (89, 210610), (178, 105305), (445, 42122), (890, 21061)]