21000871399

素因数分解:

${\mathrm{19}}^2\times {\mathrm{709}}^1\times {\mathrm{82051}}^1$

素因数の和:82798

約数の個数: 12

約数和(自身を含む): 22195886520

約数和(自身を除く): 1195015121

約数列:

[1, 19, 361, 709, 13471, 82051, 255949, 1558969, 29620411, 58174159, 1105309021, 21000871399]

約数ペア:

[(1, 21000871399), (19, 1105309021), (361, 58174159), (709, 29620411), (13471, 1558969), (82051, 255949)]