209968989

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1\times {\mathrm{353}}^1$

素因数の和:589

約数の個数: 32

約数和(自身を含む): 302797440

約数和(自身を除く): 92828451

約数列:

[1, 3, 17, 51, 107, 109, 321, 327, 353, 1059, 1819, 1853, 5457, 5559, 6001, 11663, 18003, 34989, 37771, 38477, 113313, 115431, 198271, 594813, 642107, 654109, 1926321, 1962327, 4117039, 12351117, 69989663, 209968989]

約数ペア:

[(1, 209968989), (3, 69989663), (17, 12351117), (51, 4117039), (107, 1962327), (109, 1926321), (321, 654109), (327, 642107), (353, 594813), (1059, 198271), (1819, 115431), (1853, 113313), (5457, 38477), (5559, 37771), (6001, 34989), (11663, 18003)]