208012399

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{223429}}^1$

素因数の和:223462

約数の個数: 12

約数和(自身を含む): 254710200

約数和(自身を除く): 46697801

約数列:

[1, 7, 19, 49, 133, 931, 223429, 1564003, 4245151, 10948021, 29716057, 208012399]

約数ペア:

[(1, 208012399), (7, 29716057), (19, 10948021), (49, 4245151), (133, 1564003), (931, 223429)]