18761985

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1307}}^1$

素因数の和:1358

約数の個数: 48

約数和(自身を含む): 36728640

約数和(自身を除く): 17966655

約数列:

[1, 3, 5, 9, 11, 15, 29, 33, 45, 55, 87, 99, 145, 165, 261, 319, 435, 495, 957, 1305, 1307, 1595, 2871, 3921, 4785, 6535, 11763, 14355, 14377, 19605, 37903, 43131, 58815, 71885, 113709, 129393, 189515, 215655, 341127, 416933, 568545, 646965, 1250799, 1705635, 2084665, 3752397, 6253995, 18761985]

約数ペア:

[(1, 18761985), (3, 6253995), (5, 3752397), (9, 2084665), (11, 1705635), (15, 1250799), (29, 646965), (33, 568545), (45, 416933), (55, 341127), (87, 215655), (99, 189515), (145, 129393), (165, 113709), (261, 71885), (319, 58815), (435, 43131), (495, 37903), (957, 19605), (1305, 14377), (1307, 14355), (1595, 11763), (2871, 6535), (3921, 4785)]