19701689

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{3613}}^1$

素因数の和:3680

約数の個数: 16

約数和(自身を含む): 24286080

約数和(自身を除く): 4584391

約数列:

[1, 7, 19, 41, 133, 287, 779, 3613, 5453, 25291, 68647, 148133, 480529, 1036931, 2814527, 19701689]

約数ペア:

[(1, 19701689), (7, 2814527), (19, 1036931), (41, 480529), (133, 148133), (287, 68647), (779, 25291), (3613, 5453)]