19013709

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:138

約数の個数: 64

約数和(自身を含む): 32514048

約数和(自身を除く): 13500339

約数列:

[1, 3, 11, 13, 23, 33, 39, 41, 47, 69, 123, 141, 143, 253, 299, 429, 451, 517, 533, 611, 759, 897, 943, 1081, 1353, 1551, 1599, 1833, 1927, 2829, 3243, 3289, 5781, 5863, 6721, 9867, 10373, 11891, 12259, 14053, 17589, 20163, 21197, 25051, 31119, 35673, 36777, 42159, 44321, 63591, 75153, 132963, 134849, 154583, 275561, 404547, 463749, 487531, 576173, 826683, 1462593, 1728519, 6337903, 19013709]

約数ペア:

[(1, 19013709), (3, 6337903), (11, 1728519), (13, 1462593), (23, 826683), (33, 576173), (39, 487531), (41, 463749), (47, 404547), (69, 275561), (123, 154583), (141, 134849), (143, 132963), (253, 75153), (299, 63591), (429, 44321), (451, 42159), (517, 36777), (533, 35673), (611, 31119), (759, 25051), (897, 21197), (943, 20163), (1081, 17589), (1353, 14053), (1551, 12259), (1599, 11891), (1833, 10373), (1927, 9867), (2829, 6721), (3243, 5863), (3289, 5781)]