21750174

素因数分解:

$2^1\times 3^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:119

約数の個数: 128

約数和(自身を含む): 57024000

約数和(自身を除く): 35273826

約数列:

[1, 2, 3, 6, 9, 17, 18, 19, 27, 29, 34, 38, 43, 51, 54, 57, 58, 86, 87, 102, 114, 129, 153, 171, 174, 258, 261, 306, 323, 342, 387, 459, 493, 513, 522, 551, 646, 731, 774, 783, 817, 918, 969, 986, 1026, 1102, 1161, 1247, 1462, 1479, 1566, 1634, 1653, 1938, 2193, 2322, 2451, 2494, 2907, 2958, 3306, 3741, 4386, 4437, 4902, 4959, 5814, 6579, 7353, 7482, 8721, 8874, 9367, 9918, 11223, 13158, 13311, 13889, 14706, 14877, 17442, 18734, 19737, 21199, 22059, 22446, 23693, 26622, 27778, 28101, 29754, 33669, 39474, 41667, 42398, 44118, 47386, 56202, 63597, 67338, 71079, 83334, 84303, 125001, 127194, 142158, 168606, 190791, 213237, 250002, 252909, 375003, 381582, 402781, 426474, 505818, 572373, 639711, 750006, 805562, 1144746, 1208343, 1279422, 2416686, 3625029, 7250058, 10875087, 21750174]

約数ペア:

[(1, 21750174), (2, 10875087), (3, 7250058), (6, 3625029), (9, 2416686), (17, 1279422), (18, 1208343), (19, 1144746), (27, 805562), (29, 750006), (34, 639711), (38, 572373), (43, 505818), (51, 426474), (54, 402781), (57, 381582), (58, 375003), (86, 252909), (87, 250002), (102, 213237), (114, 190791), (129, 168606), (153, 142158), (171, 127194), (174, 125001), (258, 84303), (261, 83334), (306, 71079), (323, 67338), (342, 63597), (387, 56202), (459, 47386), (493, 44118), (513, 42398), (522, 41667), (551, 39474), (646, 33669), (731, 29754), (774, 28101), (783, 27778), (817, 26622), (918, 23693), (969, 22446), (986, 22059), (1026, 21199), (1102, 19737), (1161, 18734), (1247, 17442), (1462, 14877), (1479, 14706), (1566, 13889), (1634, 13311), (1653, 13158), (1938, 11223), (2193, 9918), (2322, 9367), (2451, 8874), (2494, 8721), (2907, 7482), (2958, 7353), (3306, 6579), (3741, 5814), (4386, 4959), (4437, 4902)]