21217192920

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{255137}}^1$

素因数の和:255175

約数の個数: 256

約数和(自身を含む): 88175692800

約数和(自身を除く): 66958499880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 24, 27, 28, 30, 33, 35, 36, 40, 42, 44, 45, 54, 55, 56, 60, 63, 66, 70, 72, 77, 84, 88, 90, 99, 105, 108, 110, 120, 126, 132, 135, 140, 154, 165, 168, 180, 189, 198, 210, 216, 220, 231, 252, 264, 270, 280, 297, 308, 315, 330, 360, 378, 385, 396, 420, 440, 462, 495, 504, 540, 594, 616, 630, 660, 693, 756, 770, 792, 840, 924, 945, 990, 1080, 1155, 1188, 1260, 1320, 1386, 1485, 1512, 1540, 1848, 1890, 1980, 2079, 2310, 2376, 2520, 2772, 2970, 3080, 3465, 3780, 3960, 4158, 4620, 5544, 5940, 6930, 7560, 8316, 9240, 10395, 11880, 13860, 16632, 20790, 27720, 41580, 83160, 255137, 510274, 765411, 1020548, 1275685, 1530822, 1785959, 2041096, 2296233, 2551370, 2806507, 3061644, 3571918, 3827055, 4592466, 5102740, 5357877, 5613014, 6123288, 6888699, 7143836, 7654110, 8419521, 8929795, 9184932, 10205480, 10715754, 11226028, 11481165, 13777398, 14032535, 14287672, 15308220, 16073631, 16839042, 17859590, 18369864, 19645549, 21431508, 22452056, 22962330, 25258563, 26789385, 27554796, 28065070, 30616440, 32147262, 33678084, 34443495, 35719180, 39291098, 42097605, 42863016, 45924660, 48220893, 50517126, 53578770, 55109592, 56130140, 58936647, 64294524, 67356168, 68886990, 71438360, 75775689, 78582196, 80368155, 84195210, 91849320, 96441786, 98227745, 101034252, 107157540, 112260280, 117873294, 126292815, 128589048, 137773980, 151551378, 157164392, 160736310, 168390420, 176809941, 192883572, 196455490, 202068504, 214315080, 235746588, 241104465, 252585630, 275547960, 294683235, 303102756, 321472620, 336780840, 353619882, 378878445, 385767144, 392910980, 471493176, 482208930, 505171260, 530429823, 589366470, 606205512, 642945240, 707239764, 757756890, 785821960, 884049705, 964417860, 1010342520, 1060859646, 1178732940, 1414479528, 1515513780, 1768099410, 1928835720, 2121719292, 2357465880, 2652149115, 3031027560, 3536198820, 4243438584, 5304298230, 7072397640, 10608596460, 21217192920]

約数ペア:

[(1, 21217192920), (2, 10608596460), (3, 7072397640), (4, 5304298230), (5, 4243438584), (6, 3536198820), (7, 3031027560), (8, 2652149115), (9, 2357465880), (10, 2121719292), (11, 1928835720), (12, 1768099410), (14, 1515513780), (15, 1414479528), (18, 1178732940), (20, 1060859646), (21, 1010342520), (22, 964417860), (24, 884049705), (27, 785821960), (28, 757756890), (30, 707239764), (33, 642945240), (35, 606205512), (36, 589366470), (40, 530429823), (42, 505171260), (44, 482208930), (45, 471493176), (54, 392910980), (55, 385767144), (56, 378878445), (60, 353619882), (63, 336780840), (66, 321472620), (70, 303102756), (72, 294683235), (77, 275547960), (84, 252585630), (88, 241104465), (90, 235746588), (99, 214315080), (105, 202068504), (108, 196455490), (110, 192883572), (120, 176809941), (126, 168390420), (132, 160736310), (135, 157164392), (140, 151551378), (154, 137773980), (165, 128589048), (168, 126292815), (180, 117873294), (189, 112260280), (198, 107157540), (210, 101034252), (216, 98227745), (220, 96441786), (231, 91849320), (252, 84195210), (264, 80368155), (270, 78582196), (280, 75775689), (297, 71438360), (308, 68886990), (315, 67356168), (330, 64294524), (360, 58936647), (378, 56130140), (385, 55109592), (396, 53578770), (420, 50517126), (440, 48220893), (462, 45924660), (495, 42863016), (504, 42097605), (540, 39291098), (594, 35719180), (616, 34443495), (630, 33678084), (660, 32147262), (693, 30616440), (756, 28065070), (770, 27554796), (792, 26789385), (840, 25258563), (924, 22962330), (945, 22452056), (990, 21431508), (1080, 19645549), (1155, 18369864), (1188, 17859590), (1260, 16839042), (1320, 16073631), (1386, 15308220), (1485, 14287672), (1512, 14032535), (1540, 13777398), (1848, 11481165), (1890, 11226028), (1980, 10715754), (2079, 10205480), (2310, 9184932), (2376, 8929795), (2520, 8419521), (2772, 7654110), (2970, 7143836), (3080, 6888699), (3465, 6123288), (3780, 5613014), (3960, 5357877), (4158, 5102740), (4620, 4592466), (5544, 3827055), (5940, 3571918), (6930, 3061644), (7560, 2806507), (8316, 2551370), (9240, 2296233), (10395, 2041096), (11880, 1785959), (13860, 1530822), (16632, 1275685), (20790, 1020548), (27720, 765411), (41580, 510274), (83160, 255137)]