21243600

素因数分解:

$2^4\times 3^3\times 5^2\times 7^1\times {\mathrm{281}}^1$

素因数の和:315

約数の個数: 240

約数和(自身を含む): 86720640

約数和(自身を除く): 65477040

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, 35, 36, 40, 42, 45, 48, 50, 54, 56, 60, 63, 70, 72, 75, 80, 84, 90, 100, 105, 108, 112, 120, 126, 135, 140, 144, 150, 168, 175, 180, 189, 200, 210, 216, 225, 240, 252, 270, 280, 281, 300, 315, 336, 350, 360, 378, 400, 420, 432, 450, 504, 525, 540, 560, 562, 600, 630, 675, 700, 720, 756, 840, 843, 900, 945, 1008, 1050, 1080, 1124, 1200, 1260, 1350, 1400, 1405, 1512, 1575, 1680, 1686, 1800, 1890, 1967, 2100, 2160, 2248, 2520, 2529, 2700, 2800, 2810, 3024, 3150, 3372, 3600, 3780, 3934, 4200, 4215, 4496, 4725, 5040, 5058, 5400, 5620, 5901, 6300, 6744, 7025, 7560, 7587, 7868, 8400, 8430, 9450, 9835, 10116, 10800, 11240, 11802, 12600, 12645, 13488, 14050, 15120, 15174, 15736, 16860, 17703, 18900, 19670, 20232, 21075, 22480, 23604, 25200, 25290, 28100, 29505, 30348, 31472, 33720, 35406, 37800, 37935, 39340, 40464, 42150, 47208, 49175, 50580, 53109, 56200, 59010, 60696, 63225, 67440, 70812, 75600, 75870, 78680, 84300, 88515, 94416, 98350, 101160, 106218, 112400, 118020, 121392, 126450, 141624, 147525, 151740, 157360, 168600, 177030, 189675, 196700, 202320, 212436, 236040, 252900, 265545, 283248, 295050, 303480, 337200, 354060, 379350, 393400, 424872, 442575, 472080, 505800, 531090, 590100, 606960, 708120, 758700, 786800, 849744, 885150, 1011600, 1062180, 1180200, 1327725, 1416240, 1517400, 1770300, 2124360, 2360400, 2655450, 3034800, 3540600, 4248720, 5310900, 7081200, 10621800, 21243600]

約数ペア:

[(1, 21243600), (2, 10621800), (3, 7081200), (4, 5310900), (5, 4248720), (6, 3540600), (7, 3034800), (8, 2655450), (9, 2360400), (10, 2124360), (12, 1770300), (14, 1517400), (15, 1416240), (16, 1327725), (18, 1180200), (20, 1062180), (21, 1011600), (24, 885150), (25, 849744), (27, 786800), (28, 758700), (30, 708120), (35, 606960), (36, 590100), (40, 531090), (42, 505800), (45, 472080), (48, 442575), (50, 424872), (54, 393400), (56, 379350), (60, 354060), (63, 337200), (70, 303480), (72, 295050), (75, 283248), (80, 265545), (84, 252900), (90, 236040), (100, 212436), (105, 202320), (108, 196700), (112, 189675), (120, 177030), (126, 168600), (135, 157360), (140, 151740), (144, 147525), (150, 141624), (168, 126450), (175, 121392), (180, 118020), (189, 112400), (200, 106218), (210, 101160), (216, 98350), (225, 94416), (240, 88515), (252, 84300), (270, 78680), (280, 75870), (281, 75600), (300, 70812), (315, 67440), (336, 63225), (350, 60696), (360, 59010), (378, 56200), (400, 53109), (420, 50580), (432, 49175), (450, 47208), (504, 42150), (525, 40464), (540, 39340), (560, 37935), (562, 37800), (600, 35406), (630, 33720), (675, 31472), (700, 30348), (720, 29505), (756, 28100), (840, 25290), (843, 25200), (900, 23604), (945, 22480), (1008, 21075), (1050, 20232), (1080, 19670), (1124, 18900), (1200, 17703), (1260, 16860), (1350, 15736), (1400, 15174), (1405, 15120), (1512, 14050), (1575, 13488), (1680, 12645), (1686, 12600), (1800, 11802), (1890, 11240), (1967, 10800), (2100, 10116), (2160, 9835), (2248, 9450), (2520, 8430), (2529, 8400), (2700, 7868), (2800, 7587), (2810, 7560), (3024, 7025), (3150, 6744), (3372, 6300), (3600, 5901), (3780, 5620), (3934, 5400), (4200, 5058), (4215, 5040), (4496, 4725)]