19078983

素因数分解:

$3^4\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:79

約数の個数: 120

約数和(自身を含む): 39726720

約数和(自身を除く): 20647737

約数列:

[1, 3, 7, 9, 11, 19, 21, 23, 27, 33, 49, 57, 63, 69, 77, 81, 99, 133, 147, 161, 171, 189, 207, 209, 231, 253, 297, 399, 437, 441, 483, 513, 539, 567, 621, 627, 693, 759, 891, 931, 1127, 1197, 1311, 1323, 1449, 1463, 1539, 1617, 1771, 1863, 1881, 2079, 2277, 2793, 3059, 3381, 3591, 3933, 3969, 4347, 4389, 4807, 4851, 5313, 5643, 6237, 6831, 8379, 9177, 10143, 10241, 10773, 11799, 12397, 13041, 13167, 14421, 14553, 15939, 16929, 20493, 21413, 25137, 27531, 30429, 30723, 33649, 35397, 37191, 39501, 43263, 43659, 47817, 64239, 75411, 82593, 91287, 92169, 100947, 111573, 118503, 129789, 143451, 192717, 235543, 247779, 276507, 302841, 334719, 389367, 578151, 706629, 829521, 908523, 1004157, 1734453, 2119887, 2725569, 6359661, 19078983]

約数ペア:

[(1, 19078983), (3, 6359661), (7, 2725569), (9, 2119887), (11, 1734453), (19, 1004157), (21, 908523), (23, 829521), (27, 706629), (33, 578151), (49, 389367), (57, 334719), (63, 302841), (69, 276507), (77, 247779), (81, 235543), (99, 192717), (133, 143451), (147, 129789), (161, 118503), (171, 111573), (189, 100947), (207, 92169), (209, 91287), (231, 82593), (253, 75411), (297, 64239), (399, 47817), (437, 43659), (441, 43263), (483, 39501), (513, 37191), (539, 35397), (567, 33649), (621, 30723), (627, 30429), (693, 27531), (759, 25137), (891, 21413), (931, 20493), (1127, 16929), (1197, 15939), (1311, 14553), (1323, 14421), (1449, 13167), (1463, 13041), (1539, 12397), (1617, 11799), (1771, 10773), (1863, 10241), (1881, 10143), (2079, 9177), (2277, 8379), (2793, 6831), (3059, 6237), (3381, 5643), (3591, 5313), (3933, 4851), (3969, 4807), (4347, 4389)]