18328989

素因数分解:

$3^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{1861}}^1$

素因数の和:1945

約数の個数: 24

約数和(自身を含む): 28868448

約数和(自身を除く): 10539459

約数列:

[1, 3, 7, 21, 49, 67, 147, 201, 469, 1407, 1861, 3283, 5583, 9849, 13027, 39081, 91189, 124687, 273567, 374061, 872809, 2618427, 6109663, 18328989]

約数ペア:

[(1, 18328989), (3, 6109663), (7, 2618427), (21, 872809), (49, 374061), (67, 273567), (147, 124687), (201, 91189), (469, 39081), (1407, 13027), (1861, 9849), (3283, 5583)]