261817017

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:108

約数の個数: 128

約数和(自身を含む): 505958400

約数和(自身を除く): 244141383

約数列:

[1, 3, 7, 11, 17, 19, 21, 29, 33, 51, 57, 77, 87, 119, 121, 133, 187, 203, 209, 231, 319, 323, 357, 363, 399, 493, 551, 561, 609, 627, 847, 957, 969, 1309, 1331, 1463, 1479, 1653, 2057, 2233, 2261, 2299, 2541, 3451, 3509, 3553, 3857, 3927, 3993, 4389, 5423, 6061, 6171, 6699, 6783, 6897, 9317, 9367, 10353, 10527, 10659, 11571, 14399, 16093, 16269, 18183, 22627, 24563, 24871, 25289, 27951, 28101, 37961, 38599, 39083, 42427, 43197, 48279, 59653, 65569, 66671, 67881, 73689, 74613, 75867, 103037, 113883, 115797, 117249, 127281, 158389, 177023, 178959, 196707, 200013, 270193, 273581, 309111, 417571, 429913, 466697, 475167, 531069, 656183, 721259, 733381, 810579, 820743, 1133407, 1252713, 1289739, 1400091, 1968549, 2163777, 2200143, 3009391, 3400221, 4593281, 5133667, 7933849, 9028173, 12467477, 13779843, 15401001, 23801547, 37402431, 87272339, 261817017]

約数ペア:

[(1, 261817017), (3, 87272339), (7, 37402431), (11, 23801547), (17, 15401001), (19, 13779843), (21, 12467477), (29, 9028173), (33, 7933849), (51, 5133667), (57, 4593281), (77, 3400221), (87, 3009391), (119, 2200143), (121, 2163777), (133, 1968549), (187, 1400091), (203, 1289739), (209, 1252713), (231, 1133407), (319, 820743), (323, 810579), (357, 733381), (363, 721259), (399, 656183), (493, 531069), (551, 475167), (561, 466697), (609, 429913), (627, 417571), (847, 309111), (957, 273581), (969, 270193), (1309, 200013), (1331, 196707), (1463, 178959), (1479, 177023), (1653, 158389), (2057, 127281), (2233, 117249), (2261, 115797), (2299, 113883), (2541, 103037), (3451, 75867), (3509, 74613), (3553, 73689), (3857, 67881), (3927, 66671), (3993, 65569), (4389, 59653), (5423, 48279), (6061, 43197), (6171, 42427), (6699, 39083), (6783, 38599), (6897, 37961), (9317, 28101), (9367, 27951), (10353, 25289), (10527, 24871), (10659, 24563), (11571, 22627), (14399, 18183), (16093, 16269)]