1999163945

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{1021}}^1\times {\mathrm{20611}}^1$

素因数の和:21656

約数の個数: 16

約数和(自身を含む): 2527855680

約数和(自身を除く): 528691735

約数列:

[1, 5, 19, 95, 1021, 5105, 19399, 20611, 96995, 103055, 391609, 1958045, 21043831, 105219155, 399832789, 1999163945]

約数ペア:

[(1, 1999163945), (5, 399832789), (19, 105219155), (95, 21043831), (1021, 1958045), (5105, 391609), (19399, 103055), (20611, 96995)]