1244205

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{643}}^1$

素因数の和:697

約数の個数: 24

約数和(自身を含む): 2210208

約数和(自身を除く): 966003

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 643, 645, 1929, 1935, 3215, 5787, 9645, 27649, 28935, 82947, 138245, 248841, 414735, 1244205]

約数ペア:

[(1, 1244205), (3, 414735), (5, 248841), (9, 138245), (15, 82947), (43, 28935), (45, 27649), (129, 9645), (215, 5787), (387, 3215), (643, 1935), (645, 1929)]