21609000

素因数分解:

$2^3\times 3^2\times 5^3\times 7^4$

素因数の和:55

約数の個数: 240

約数和(自身を含む): 85206420

約数和(自身を除く): 63597420

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 25, 28, 30, 35, 36, 40, 42, 45, 49, 50, 56, 60, 63, 70, 72, 75, 84, 90, 98, 100, 105, 120, 125, 126, 140, 147, 150, 168, 175, 180, 196, 200, 210, 225, 245, 250, 252, 280, 294, 300, 315, 343, 350, 360, 375, 392, 420, 441, 450, 490, 500, 504, 525, 588, 600, 630, 686, 700, 735, 750, 840, 875, 882, 900, 980, 1000, 1029, 1050, 1125, 1176, 1225, 1260, 1372, 1400, 1470, 1500, 1575, 1715, 1750, 1764, 1800, 1960, 2058, 2100, 2205, 2250, 2401, 2450, 2520, 2625, 2744, 2940, 3000, 3087, 3150, 3430, 3500, 3528, 3675, 4116, 4200, 4410, 4500, 4802, 4900, 5145, 5250, 5880, 6125, 6174, 6300, 6860, 7000, 7203, 7350, 7875, 8232, 8575, 8820, 9000, 9604, 9800, 10290, 10500, 11025, 12005, 12250, 12348, 12600, 13720, 14406, 14700, 15435, 15750, 17150, 17640, 18375, 19208, 20580, 21000, 21609, 22050, 24010, 24500, 24696, 25725, 28812, 29400, 30870, 31500, 34300, 36015, 36750, 41160, 42875, 43218, 44100, 48020, 49000, 51450, 55125, 57624, 60025, 61740, 63000, 68600, 72030, 73500, 77175, 85750, 86436, 88200, 96040, 102900, 108045, 110250, 120050, 123480, 128625, 144060, 147000, 154350, 171500, 172872, 180075, 205800, 216090, 220500, 240100, 257250, 288120, 300125, 308700, 343000, 360150, 385875, 432180, 441000, 480200, 514500, 540225, 600250, 617400, 720300, 771750, 864360, 900375, 1029000, 1080450, 1200500, 1440600, 1543500, 1800750, 2160900, 2401000, 2701125, 3087000, 3601500, 4321800, 5402250, 7203000, 10804500, 21609000]

約数ペア:

[(1, 21609000), (2, 10804500), (3, 7203000), (4, 5402250), (5, 4321800), (6, 3601500), (7, 3087000), (8, 2701125), (9, 2401000), (10, 2160900), (12, 1800750), (14, 1543500), (15, 1440600), (18, 1200500), (20, 1080450), (21, 1029000), (24, 900375), (25, 864360), (28, 771750), (30, 720300), (35, 617400), (36, 600250), (40, 540225), (42, 514500), (45, 480200), (49, 441000), (50, 432180), (56, 385875), (60, 360150), (63, 343000), (70, 308700), (72, 300125), (75, 288120), (84, 257250), (90, 240100), (98, 220500), (100, 216090), (105, 205800), (120, 180075), (125, 172872), (126, 171500), (140, 154350), (147, 147000), (150, 144060), (168, 128625), (175, 123480), (180, 120050), (196, 110250), (200, 108045), (210, 102900), (225, 96040), (245, 88200), (250, 86436), (252, 85750), (280, 77175), (294, 73500), (300, 72030), (315, 68600), (343, 63000), (350, 61740), (360, 60025), (375, 57624), (392, 55125), (420, 51450), (441, 49000), (450, 48020), (490, 44100), (500, 43218), (504, 42875), (525, 41160), (588, 36750), (600, 36015), (630, 34300), (686, 31500), (700, 30870), (735, 29400), (750, 28812), (840, 25725), (875, 24696), (882, 24500), (900, 24010), (980, 22050), (1000, 21609), (1029, 21000), (1050, 20580), (1125, 19208), (1176, 18375), (1225, 17640), (1260, 17150), (1372, 15750), (1400, 15435), (1470, 14700), (1500, 14406), (1575, 13720), (1715, 12600), (1750, 12348), (1764, 12250), (1800, 12005), (1960, 11025), (2058, 10500), (2100, 10290), (2205, 9800), (2250, 9604), (2401, 9000), (2450, 8820), (2520, 8575), (2625, 8232), (2744, 7875), (2940, 7350), (3000, 7203), (3087, 7000), (3150, 6860), (3430, 6300), (3500, 6174), (3528, 6125), (3675, 5880), (4116, 5250), (4200, 5145), (4410, 4900), (4500, 4802)]