138551819

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{263}}^1$

素因数の和:539

約数の個数: 32

約数和(自身を含む): 177914880

約数和(自身を除く): 39363061

約数列:

[1, 7, 17, 19, 119, 133, 233, 263, 323, 1631, 1841, 2261, 3961, 4427, 4471, 4997, 27727, 30989, 31297, 34979, 61279, 75259, 84949, 428953, 526813, 594643, 1041743, 1164301, 7292201, 8150107, 19793117, 138551819]

約数ペア:

[(1, 138551819), (7, 19793117), (17, 8150107), (19, 7292201), (119, 1164301), (133, 1041743), (233, 594643), (263, 526813), (323, 428953), (1631, 84949), (1841, 75259), (2261, 61279), (3961, 34979), (4427, 31297), (4471, 30989), (4997, 27727)]