18087278

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43271}}^1$

素因数の和:43303

約数の個数: 16

約数和(自身を含む): 31155840

約数和(自身を除く): 13068562

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 43271, 86542, 475981, 822149, 951962, 1644298, 9043639, 18087278]

約数ペア:

[(1, 18087278), (2, 9043639), (11, 1644298), (19, 951962), (22, 822149), (38, 475981), (209, 86542), (418, 43271)]