12991516

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{859}}^1$

素因数の和:1081

約数の個数: 24

約数和(自身を含む): 24080000

約数和(自身を除く): 11088484

約数列:

[1, 2, 4, 19, 38, 76, 199, 398, 796, 859, 1718, 3436, 3781, 7562, 15124, 16321, 32642, 65284, 170941, 341882, 683764, 3247879, 6495758, 12991516]

約数ペア:

[(1, 12991516), (2, 6495758), (4, 3247879), (19, 683764), (38, 341882), (76, 170941), (199, 65284), (398, 32642), (796, 16321), (859, 15124), (1718, 7562), (3436, 3781)]