18273409

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{5519}}^1$

素因数の和:5580

約数の個数: 16

約数和(自身を含む): 23316480

約数和(自身を除く): 5043071

約数列:

[1, 7, 11, 43, 77, 301, 473, 3311, 5519, 38633, 60709, 237317, 424963, 1661219, 2610487, 18273409]

約数ペア:

[(1, 18273409), (7, 2610487), (11, 1661219), (43, 424963), (77, 237317), (301, 60709), (473, 38633), (3311, 5519)]