254594319

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{638081}}^1$

素因数の和:638110

約数の個数: 16

約数和(自身を含む): 408372480

約数和(自身を除く): 153778161

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 638081, 1914243, 4466567, 12123539, 13399701, 36370617, 84864773, 254594319]

約数ペア:

[(1, 254594319), (3, 84864773), (7, 36370617), (19, 13399701), (21, 12123539), (57, 4466567), (133, 1914243), (399, 638081)]