21205800

素因数分解:

$2^3\times 3^4\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1$

素因数の和:63

約数の個数: 480

約数和(自身を含む): 97225920

約数和(自身を除く): 76020120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 17, 18, 20, 21, 22, 24, 25, 27, 28, 30, 33, 34, 35, 36, 40, 42, 44, 45, 50, 51, 54, 55, 56, 60, 63, 66, 68, 70, 72, 75, 77, 81, 84, 85, 88, 90, 99, 100, 102, 105, 108, 110, 119, 120, 126, 132, 135, 136, 140, 150, 153, 154, 162, 165, 168, 170, 175, 180, 187, 189, 198, 200, 204, 210, 216, 220, 225, 231, 238, 252, 255, 264, 270, 275, 280, 297, 300, 306, 308, 315, 324, 330, 340, 350, 357, 360, 374, 378, 385, 396, 405, 408, 420, 425, 440, 450, 459, 462, 476, 495, 504, 510, 525, 540, 550, 561, 567, 594, 595, 600, 612, 616, 630, 648, 660, 675, 680, 693, 700, 714, 748, 756, 765, 770, 792, 810, 825, 840, 850, 891, 900, 918, 924, 935, 945, 952, 990, 1020, 1050, 1071, 1080, 1100, 1122, 1134, 1155, 1188, 1190, 1224, 1260, 1275, 1309, 1320, 1350, 1377, 1386, 1400, 1428, 1485, 1496, 1512, 1530, 1540, 1575, 1620, 1650, 1683, 1700, 1782, 1785, 1800, 1836, 1848, 1870, 1890, 1925, 1980, 2025, 2040, 2079, 2100, 2142, 2200, 2244, 2268, 2295, 2310, 2376, 2380, 2475, 2520, 2550, 2618, 2700, 2754, 2772, 2805, 2835, 2856, 2970, 2975, 3060, 3080, 3150, 3213, 3240, 3300, 3366, 3400, 3465, 3564, 3570, 3672, 3740, 3780, 3825, 3850, 3927, 3960, 4050, 4158, 4200, 4284, 4455, 4488, 4536, 4590, 4620, 4675, 4725, 4760, 4950, 5049, 5100, 5236, 5355, 5400, 5508, 5544, 5610, 5670, 5775, 5940, 5950, 6120, 6237, 6300, 6426, 6545, 6600, 6732, 6885, 6930, 7128, 7140, 7425, 7480, 7560, 7650, 7700, 7854, 8100, 8316, 8415, 8568, 8910, 8925, 9180, 9240, 9350, 9450, 9639, 9900, 10098, 10200, 10395, 10472, 10710, 11016, 11220, 11340, 11475, 11550, 11781, 11880, 11900, 12474, 12600, 12852, 13090, 13464, 13770, 13860, 14025, 14175, 14280, 14850, 15147, 15300, 15400, 15708, 16065, 16200, 16632, 16830, 17325, 17820, 17850, 18360, 18700, 18900, 19278, 19635, 19800, 20196, 20790, 21420, 22275, 22440, 22680, 22950, 23100, 23562, 23800, 24948, 25245, 25704, 26180, 26775, 27540, 27720, 28050, 28350, 29700, 30294, 30600, 31185, 31416, 32130, 32725, 33660, 34425, 34650, 35343, 35640, 35700, 37400, 37800, 38556, 39270, 40392, 41580, 42075, 42840, 44550, 45900, 46200, 47124, 48195, 49896, 50490, 51975, 52360, 53550, 55080, 56100, 56700, 58905, 59400, 60588, 62370, 64260, 65450, 67320, 68850, 69300, 70686, 71400, 75735, 77112, 78540, 80325, 83160, 84150, 89100, 91800, 94248, 96390, 98175, 100980, 103950, 106029, 107100, 112200, 113400, 117810, 121176, 124740, 126225, 128520, 130900, 137700, 138600, 141372, 151470, 155925, 157080, 160650, 168300, 176715, 178200, 192780, 196350, 201960, 207900, 212058, 214200, 235620, 240975, 249480, 252450, 261800, 275400, 282744, 294525, 302940, 311850, 321300, 336600, 353430, 378675, 385560, 392700, 415800, 424116, 471240, 481950, 504900, 530145, 589050, 605880, 623700, 642600, 706860, 757350, 785400, 848232, 883575, 963900, 1009800, 1060290, 1178100, 1247400, 1413720, 1514700, 1767150, 1927800, 2120580, 2356200, 2650725, 3029400, 3534300, 4241160, 5301450, 7068600, 10602900, 21205800]

約数ペア:

[(1, 21205800), (2, 10602900), (3, 7068600), (4, 5301450), (5, 4241160), (6, 3534300), (7, 3029400), (8, 2650725), (9, 2356200), (10, 2120580), (11, 1927800), (12, 1767150), (14, 1514700), (15, 1413720), (17, 1247400), (18, 1178100), (20, 1060290), (21, 1009800), (22, 963900), (24, 883575), (25, 848232), (27, 785400), (28, 757350), (30, 706860), (33, 642600), (34, 623700), (35, 605880), (36, 589050), (40, 530145), (42, 504900), (44, 481950), (45, 471240), (50, 424116), (51, 415800), (54, 392700), (55, 385560), (56, 378675), (60, 353430), (63, 336600), (66, 321300), (68, 311850), (70, 302940), (72, 294525), (75, 282744), (77, 275400), (81, 261800), (84, 252450), (85, 249480), (88, 240975), (90, 235620), (99, 214200), (100, 212058), (102, 207900), (105, 201960), (108, 196350), (110, 192780), (119, 178200), (120, 176715), (126, 168300), (132, 160650), (135, 157080), (136, 155925), (140, 151470), (150, 141372), (153, 138600), (154, 137700), (162, 130900), (165, 128520), (168, 126225), (170, 124740), (175, 121176), (180, 117810), (187, 113400), (189, 112200), (198, 107100), (200, 106029), (204, 103950), (210, 100980), (216, 98175), (220, 96390), (225, 94248), (231, 91800), (238, 89100), (252, 84150), (255, 83160), (264, 80325), (270, 78540), (275, 77112), (280, 75735), (297, 71400), (300, 70686), (306, 69300), (308, 68850), (315, 67320), (324, 65450), (330, 64260), (340, 62370), (350, 60588), (357, 59400), (360, 58905), (374, 56700), (378, 56100), (385, 55080), (396, 53550), (405, 52360), (408, 51975), (420, 50490), (425, 49896), (440, 48195), (450, 47124), (459, 46200), (462, 45900), (476, 44550), (495, 42840), (504, 42075), (510, 41580), (525, 40392), (540, 39270), (550, 38556), (561, 37800), (567, 37400), (594, 35700), (595, 35640), (600, 35343), (612, 34650), (616, 34425), (630, 33660), (648, 32725), (660, 32130), (675, 31416), (680, 31185), (693, 30600), (700, 30294), (714, 29700), (748, 28350), (756, 28050), (765, 27720), (770, 27540), (792, 26775), (810, 26180), (825, 25704), (840, 25245), (850, 24948), (891, 23800), (900, 23562), (918, 23100), (924, 22950), (935, 22680), (945, 22440), (952, 22275), (990, 21420), (1020, 20790), (1050, 20196), (1071, 19800), (1080, 19635), (1100, 19278), (1122, 18900), (1134, 18700), (1155, 18360), (1188, 17850), (1190, 17820), (1224, 17325), (1260, 16830), (1275, 16632), (1309, 16200), (1320, 16065), (1350, 15708), (1377, 15400), (1386, 15300), (1400, 15147), (1428, 14850), (1485, 14280), (1496, 14175), (1512, 14025), (1530, 13860), (1540, 13770), (1575, 13464), (1620, 13090), (1650, 12852), (1683, 12600), (1700, 12474), (1782, 11900), (1785, 11880), (1800, 11781), (1836, 11550), (1848, 11475), (1870, 11340), (1890, 11220), (1925, 11016), (1980, 10710), (2025, 10472), (2040, 10395), (2079, 10200), (2100, 10098), (2142, 9900), (2200, 9639), (2244, 9450), (2268, 9350), (2295, 9240), (2310, 9180), (2376, 8925), (2380, 8910), (2475, 8568), (2520, 8415), (2550, 8316), (2618, 8100), (2700, 7854), (2754, 7700), (2772, 7650), (2805, 7560), (2835, 7480), (2856, 7425), (2970, 7140), (2975, 7128), (3060, 6930), (3080, 6885), (3150, 6732), (3213, 6600), (3240, 6545), (3300, 6426), (3366, 6300), (3400, 6237), (3465, 6120), (3564, 5950), (3570, 5940), (3672, 5775), (3740, 5670), (3780, 5610), (3825, 5544), (3850, 5508), (3927, 5400), (3960, 5355), (4050, 5236), (4158, 5100), (4200, 5049), (4284, 4950), (4455, 4760), (4488, 4725), (4536, 4675), (4590, 4620)]