205596321

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{515279}}^1$

素因数の和:515308

約数の個数: 16

約数和(自身を含む): 329779200

約数和(自身を除く): 124182879

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 515279, 1545837, 3606953, 9790301, 10820859, 29370903, 68532107, 205596321]

約数ペア:

[(1, 205596321), (3, 68532107), (7, 29370903), (19, 10820859), (21, 9790301), (57, 3606953), (133, 1545837), (399, 515279)]