20738538

素因数分解:

$2^1\times 3^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1$

素因数の和:117

約数の個数: 128

約数和(自身を含む): 54432000

約数和(自身を除く): 33693462

約数列:

[1, 2, 3, 6, 9, 17, 18, 19, 27, 29, 34, 38, 41, 51, 54, 57, 58, 82, 87, 102, 114, 123, 153, 171, 174, 246, 261, 306, 323, 342, 369, 459, 493, 513, 522, 551, 646, 697, 738, 779, 783, 918, 969, 986, 1026, 1102, 1107, 1189, 1394, 1479, 1558, 1566, 1653, 1938, 2091, 2214, 2337, 2378, 2907, 2958, 3306, 3567, 4182, 4437, 4674, 4959, 5814, 6273, 7011, 7134, 8721, 8874, 9367, 9918, 10701, 12546, 13243, 13311, 14022, 14877, 17442, 18734, 18819, 20213, 21033, 21402, 22591, 26486, 26622, 28101, 29754, 32103, 37638, 39729, 40426, 42066, 45182, 56202, 60639, 64206, 67773, 79458, 84303, 119187, 121278, 135546, 168606, 181917, 203319, 238374, 252909, 357561, 363834, 384047, 406638, 505818, 545751, 609957, 715122, 768094, 1091502, 1152141, 1219914, 2304282, 3456423, 6912846, 10369269, 20738538]

約数ペア:

[(1, 20738538), (2, 10369269), (3, 6912846), (6, 3456423), (9, 2304282), (17, 1219914), (18, 1152141), (19, 1091502), (27, 768094), (29, 715122), (34, 609957), (38, 545751), (41, 505818), (51, 406638), (54, 384047), (57, 363834), (58, 357561), (82, 252909), (87, 238374), (102, 203319), (114, 181917), (123, 168606), (153, 135546), (171, 121278), (174, 119187), (246, 84303), (261, 79458), (306, 67773), (323, 64206), (342, 60639), (369, 56202), (459, 45182), (493, 42066), (513, 40426), (522, 39729), (551, 37638), (646, 32103), (697, 29754), (738, 28101), (779, 26622), (783, 26486), (918, 22591), (969, 21402), (986, 21033), (1026, 20213), (1102, 18819), (1107, 18734), (1189, 17442), (1394, 14877), (1479, 14022), (1558, 13311), (1566, 13243), (1653, 12546), (1938, 10701), (2091, 9918), (2214, 9367), (2337, 8874), (2378, 8721), (2907, 7134), (2958, 7011), (3306, 6273), (3567, 5814), (4182, 4959), (4437, 4674)]