19488231

素因数分解:

$3^2\times 7^3\times {\mathrm{59}}^1\times {\mathrm{107}}^1$

素因数の和:193

約数の個数: 48

約数和(自身を含む): 33696000

約数和(自身を除く): 14207769

約数列:

[1, 3, 7, 9, 21, 49, 59, 63, 107, 147, 177, 321, 343, 413, 441, 531, 749, 963, 1029, 1239, 2247, 2891, 3087, 3717, 5243, 6313, 6741, 8673, 15729, 18939, 20237, 26019, 36701, 44191, 47187, 56817, 60711, 110103, 132573, 182133, 309337, 330309, 397719, 928011, 2165359, 2784033, 6496077, 19488231]

約数ペア:

[(1, 19488231), (3, 6496077), (7, 2784033), (9, 2165359), (21, 928011), (49, 397719), (59, 330309), (63, 309337), (107, 182133), (147, 132573), (177, 110103), (321, 60711), (343, 56817), (413, 47187), (441, 44191), (531, 36701), (749, 26019), (963, 20237), (1029, 18939), (1239, 15729), (2247, 8673), (2891, 6741), (3087, 6313), (3717, 5243)]