199918969

素因数分解:

${\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{2591}}^1$

素因数の和:2772

約数の個数: 16

約数和(自身を含む): 218972160

約数和(自身を除く): 19053191

約数列:

[1, 19, 31, 131, 589, 2489, 2591, 4061, 49229, 77159, 80321, 339421, 1526099, 6448999, 10522051, 199918969]

約数ペア:

[(1, 199918969), (19, 10522051), (31, 6448999), (131, 1526099), (589, 339421), (2489, 80321), (2591, 77159), (4061, 49229)]