18510961

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{1361}}^1$

素因数の和:1464

約数の個数: 16

約数和(自身を含む): 22227840

約数和(自身を除く): 3716879

約数列:

[1, 7, 29, 67, 203, 469, 1361, 1943, 9527, 13601, 39469, 91187, 276283, 638309, 2644423, 18510961]

約数ペア:

[(1, 18510961), (7, 2644423), (29, 638309), (67, 276283), (203, 91187), (469, 39469), (1361, 13601), (1943, 9527)]