18865218

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{73121}}^1$

素因数の和:73169

約数の個数: 16

約数和(自身を含む): 38608416

約数和(自身を除く): 19743198

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 73121, 146242, 219363, 438726, 3144203, 6288406, 9432609, 18865218]

約数ペア:

[(1, 18865218), (2, 9432609), (3, 6288406), (6, 3144203), (43, 438726), (86, 219363), (129, 146242), (258, 73121)]