21392800

素因数分解:

$2^5\times 5^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1$

素因数の和:72

約数の個数: 216

約数和(自身を含む): 65456748

約数和(自身を除く): 44063948

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 17, 20, 22, 25, 26, 32, 34, 40, 44, 50, 52, 55, 65, 68, 80, 85, 88, 100, 104, 110, 121, 130, 136, 143, 160, 170, 176, 187, 200, 208, 220, 221, 242, 260, 272, 275, 286, 325, 340, 352, 374, 400, 416, 425, 440, 442, 484, 520, 544, 550, 572, 605, 650, 680, 715, 748, 800, 850, 880, 884, 935, 968, 1040, 1100, 1105, 1144, 1210, 1300, 1360, 1430, 1496, 1573, 1700, 1760, 1768, 1870, 1936, 2057, 2080, 2200, 2210, 2288, 2420, 2431, 2600, 2720, 2860, 2992, 3025, 3146, 3400, 3536, 3575, 3740, 3872, 4114, 4400, 4420, 4576, 4675, 4840, 4862, 5200, 5525, 5720, 5984, 6050, 6292, 6800, 7072, 7150, 7480, 7865, 8228, 8800, 8840, 9350, 9680, 9724, 10285, 10400, 11050, 11440, 12100, 12155, 12584, 13600, 14300, 14960, 15730, 16456, 17680, 18700, 19360, 19448, 20570, 22100, 22880, 24200, 24310, 25168, 26741, 28600, 29920, 31460, 32912, 35360, 37400, 38896, 39325, 41140, 44200, 48400, 48620, 50336, 51425, 53482, 57200, 60775, 62920, 65824, 74800, 77792, 78650, 82280, 88400, 96800, 97240, 102850, 106964, 114400, 121550, 125840, 133705, 149600, 157300, 164560, 176800, 194480, 205700, 213928, 243100, 251680, 267410, 314600, 329120, 388960, 411400, 427856, 486200, 534820, 629200, 668525, 822800, 855712, 972400, 1069640, 1258400, 1337050, 1645600, 1944800, 2139280, 2674100, 4278560, 5348200, 10696400, 21392800]

約数ペア:

[(1, 21392800), (2, 10696400), (4, 5348200), (5, 4278560), (8, 2674100), (10, 2139280), (11, 1944800), (13, 1645600), (16, 1337050), (17, 1258400), (20, 1069640), (22, 972400), (25, 855712), (26, 822800), (32, 668525), (34, 629200), (40, 534820), (44, 486200), (50, 427856), (52, 411400), (55, 388960), (65, 329120), (68, 314600), (80, 267410), (85, 251680), (88, 243100), (100, 213928), (104, 205700), (110, 194480), (121, 176800), (130, 164560), (136, 157300), (143, 149600), (160, 133705), (170, 125840), (176, 121550), (187, 114400), (200, 106964), (208, 102850), (220, 97240), (221, 96800), (242, 88400), (260, 82280), (272, 78650), (275, 77792), (286, 74800), (325, 65824), (340, 62920), (352, 60775), (374, 57200), (400, 53482), (416, 51425), (425, 50336), (440, 48620), (442, 48400), (484, 44200), (520, 41140), (544, 39325), (550, 38896), (572, 37400), (605, 35360), (650, 32912), (680, 31460), (715, 29920), (748, 28600), (800, 26741), (850, 25168), (880, 24310), (884, 24200), (935, 22880), (968, 22100), (1040, 20570), (1100, 19448), (1105, 19360), (1144, 18700), (1210, 17680), (1300, 16456), (1360, 15730), (1430, 14960), (1496, 14300), (1573, 13600), (1700, 12584), (1760, 12155), (1768, 12100), (1870, 11440), (1936, 11050), (2057, 10400), (2080, 10285), (2200, 9724), (2210, 9680), (2288, 9350), (2420, 8840), (2431, 8800), (2600, 8228), (2720, 7865), (2860, 7480), (2992, 7150), (3025, 7072), (3146, 6800), (3400, 6292), (3536, 6050), (3575, 5984), (3740, 5720), (3872, 5525), (4114, 5200), (4400, 4862), (4420, 4840), (4576, 4675)]