19806728

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{34871}}^1$

素因数の和:34948

約数の個数: 16

約数和(自身を含む): 37661760

約数和(自身を除く): 17855032

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 34871, 69742, 139484, 278968, 2475841, 4951682, 9903364, 19806728]

約数ペア:

[(1, 19806728), (2, 9903364), (4, 4951682), (8, 2475841), (71, 278968), (142, 139484), (284, 69742), (568, 34871)]