638564772

素因数分解:

$2^2\times 3^1\times {\mathrm{53213731}}^1$

素因数の和:53213738

約数の個数: 12

約数和(自身を含む): 1489984496

約数和(自身を除く): 851419724

約数列:

[1, 2, 3, 4, 6, 12, 53213731, 106427462, 159641193, 212854924, 319282386, 638564772]

約数ペア:

[(1, 638564772), (2, 319282386), (3, 212854924), (4, 159641193), (6, 106427462), (12, 53213731)]