19649619

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 32707584

約数和(自身を除く): 13057965

約数列:

[1, 3, 9, 11, 33, 41, 47, 99, 103, 123, 141, 309, 369, 423, 451, 517, 927, 1133, 1353, 1551, 1927, 3399, 4059, 4223, 4653, 4841, 5781, 10197, 12669, 14523, 17343, 21197, 38007, 43569, 46453, 53251, 63591, 139359, 159753, 190773, 198481, 418077, 479259, 595443, 1786329, 2183291, 6549873, 19649619]

約数ペア:

[(1, 19649619), (3, 6549873), (9, 2183291), (11, 1786329), (33, 595443), (41, 479259), (47, 418077), (99, 198481), (103, 190773), (123, 159753), (141, 139359), (309, 63591), (369, 53251), (423, 46453), (451, 43569), (517, 38007), (927, 21197), (1133, 17343), (1353, 14523), (1551, 12669), (1927, 10197), (3399, 5781), (4059, 4841), (4223, 4653)]