21354292

素因数分解:

$2^2\times {\mathrm{139}}^1\times {\mathrm{193}}^1\times {\mathrm{199}}^1$

素因数の和:535

約数の個数: 24

約数和(自身を含む): 38024000

約数和(自身を除く): 16669708

約数列:

[1, 2, 4, 139, 193, 199, 278, 386, 398, 556, 772, 796, 26827, 27661, 38407, 53654, 55322, 76814, 107308, 110644, 153628, 5338573, 10677146, 21354292]

約数ペア:

[(1, 21354292), (2, 10677146), (4, 5338573), (139, 153628), (193, 110644), (199, 107308), (278, 76814), (386, 55322), (398, 53654), (556, 38407), (772, 27661), (796, 26827)]