208996508

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{53699}}^1$

素因数の和:53849

約数の個数: 24

約数和(自身を含む): 421008000

約数和(自身を除く): 212011492

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 53699, 107398, 214796, 375893, 751786, 1503572, 7464161, 14928322, 29856644, 52249127, 104498254, 208996508]

約数ペア:

[(1, 208996508), (2, 104498254), (4, 52249127), (7, 29856644), (14, 14928322), (28, 7464161), (139, 1503572), (278, 751786), (556, 375893), (973, 214796), (1946, 107398), (3892, 53699)]