19866759

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{12809}}^1$

素因数の和:12870

約数の個数: 16

約数和(自身を含む): 29514240

約数和(自身を除く): 9647481

約数列:

[1, 3, 11, 33, 47, 141, 517, 1551, 12809, 38427, 140899, 422697, 602023, 1806069, 6622253, 19866759]

約数ペア:

[(1, 19866759), (3, 6622253), (11, 1806069), (33, 602023), (47, 422697), (141, 140899), (517, 38427), (1551, 12809)]