21016800

素因数分解:

$2^5\times 3^3\times 5^2\times 7^1\times {\mathrm{139}}^1$

素因数の和:175

約数の個数: 288

約数和(自身を含む): 87494400

約数和(自身を除く): 66477600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 25, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 50, 54, 56, 60, 63, 70, 72, 75, 80, 84, 90, 96, 100, 105, 108, 112, 120, 126, 135, 139, 140, 144, 150, 160, 168, 175, 180, 189, 200, 210, 216, 224, 225, 240, 252, 270, 278, 280, 288, 300, 315, 336, 350, 360, 378, 400, 417, 420, 432, 450, 480, 504, 525, 540, 556, 560, 600, 630, 672, 675, 695, 700, 720, 756, 800, 834, 840, 864, 900, 945, 973, 1008, 1050, 1080, 1112, 1120, 1200, 1251, 1260, 1350, 1390, 1400, 1440, 1512, 1575, 1668, 1680, 1800, 1890, 1946, 2016, 2085, 2100, 2160, 2224, 2400, 2502, 2520, 2700, 2780, 2800, 2919, 3024, 3150, 3336, 3360, 3475, 3600, 3753, 3780, 3892, 4170, 4200, 4320, 4448, 4725, 4865, 5004, 5040, 5400, 5560, 5600, 5838, 6048, 6255, 6300, 6672, 6950, 7200, 7506, 7560, 7784, 8340, 8400, 8757, 9450, 9730, 10008, 10080, 10425, 10800, 11120, 11676, 12510, 12600, 13344, 13900, 14595, 15012, 15120, 15568, 16680, 16800, 17514, 18765, 18900, 19460, 20016, 20850, 21600, 22240, 23352, 24325, 25020, 25200, 26271, 27800, 29190, 30024, 30240, 31136, 31275, 33360, 35028, 37530, 37800, 38920, 40032, 41700, 43785, 46704, 48650, 50040, 50400, 52542, 55600, 58380, 60048, 62550, 66720, 70056, 72975, 75060, 75600, 77840, 83400, 87570, 93408, 93825, 97300, 100080, 105084, 111200, 116760, 120096, 125100, 131355, 140112, 145950, 150120, 151200, 155680, 166800, 175140, 187650, 194600, 200160, 210168, 218925, 233520, 250200, 262710, 280224, 291900, 300240, 333600, 350280, 375300, 389200, 420336, 437850, 467040, 500400, 525420, 583800, 600480, 656775, 700560, 750600, 778400, 840672, 875700, 1000800, 1050840, 1167600, 1313550, 1401120, 1501200, 1751400, 2101680, 2335200, 2627100, 3002400, 3502800, 4203360, 5254200, 7005600, 10508400, 21016800]

約数ペア:

[(1, 21016800), (2, 10508400), (3, 7005600), (4, 5254200), (5, 4203360), (6, 3502800), (7, 3002400), (8, 2627100), (9, 2335200), (10, 2101680), (12, 1751400), (14, 1501200), (15, 1401120), (16, 1313550), (18, 1167600), (20, 1050840), (21, 1000800), (24, 875700), (25, 840672), (27, 778400), (28, 750600), (30, 700560), (32, 656775), (35, 600480), (36, 583800), (40, 525420), (42, 500400), (45, 467040), (48, 437850), (50, 420336), (54, 389200), (56, 375300), (60, 350280), (63, 333600), (70, 300240), (72, 291900), (75, 280224), (80, 262710), (84, 250200), (90, 233520), (96, 218925), (100, 210168), (105, 200160), (108, 194600), (112, 187650), (120, 175140), (126, 166800), (135, 155680), (139, 151200), (140, 150120), (144, 145950), (150, 140112), (160, 131355), (168, 125100), (175, 120096), (180, 116760), (189, 111200), (200, 105084), (210, 100080), (216, 97300), (224, 93825), (225, 93408), (240, 87570), (252, 83400), (270, 77840), (278, 75600), (280, 75060), (288, 72975), (300, 70056), (315, 66720), (336, 62550), (350, 60048), (360, 58380), (378, 55600), (400, 52542), (417, 50400), (420, 50040), (432, 48650), (450, 46704), (480, 43785), (504, 41700), (525, 40032), (540, 38920), (556, 37800), (560, 37530), (600, 35028), (630, 33360), (672, 31275), (675, 31136), (695, 30240), (700, 30024), (720, 29190), (756, 27800), (800, 26271), (834, 25200), (840, 25020), (864, 24325), (900, 23352), (945, 22240), (973, 21600), (1008, 20850), (1050, 20016), (1080, 19460), (1112, 18900), (1120, 18765), (1200, 17514), (1251, 16800), (1260, 16680), (1350, 15568), (1390, 15120), (1400, 15012), (1440, 14595), (1512, 13900), (1575, 13344), (1668, 12600), (1680, 12510), (1800, 11676), (1890, 11120), (1946, 10800), (2016, 10425), (2085, 10080), (2100, 10008), (2160, 9730), (2224, 9450), (2400, 8757), (2502, 8400), (2520, 8340), (2700, 7784), (2780, 7560), (2800, 7506), (2919, 7200), (3024, 6950), (3150, 6672), (3336, 6300), (3360, 6255), (3475, 6048), (3600, 5838), (3753, 5600), (3780, 5560), (3892, 5400), (4170, 5040), (4200, 5004), (4320, 4865), (4448, 4725)]