21289800

素因数分解:

$2^3\times 3^1\times 5^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1$

素因数の和:200

約数の個数: 192

約数和(自身を含む): 78030720

約数和(自身を除く): 56740920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 37, 40, 42, 50, 56, 60, 70, 74, 75, 84, 100, 105, 111, 120, 137, 140, 148, 150, 168, 175, 185, 200, 210, 222, 259, 274, 280, 296, 300, 350, 370, 411, 420, 444, 518, 525, 548, 555, 600, 685, 700, 740, 777, 822, 840, 888, 925, 959, 1036, 1050, 1096, 1110, 1295, 1370, 1400, 1480, 1554, 1644, 1850, 1918, 2055, 2072, 2100, 2220, 2590, 2740, 2775, 2877, 3108, 3288, 3425, 3700, 3836, 3885, 4110, 4200, 4440, 4795, 5069, 5180, 5480, 5550, 5754, 6216, 6475, 6850, 7400, 7672, 7770, 8220, 9590, 10138, 10275, 10360, 11100, 11508, 12950, 13700, 14385, 15207, 15540, 16440, 19180, 19425, 20276, 20550, 22200, 23016, 23975, 25345, 25900, 27400, 28770, 30414, 31080, 35483, 38360, 38850, 40552, 41100, 47950, 50690, 51800, 57540, 60828, 70966, 71925, 76035, 77700, 82200, 95900, 101380, 106449, 115080, 121656, 126725, 141932, 143850, 152070, 155400, 177415, 191800, 202760, 212898, 253450, 283864, 287700, 304140, 354830, 380175, 425796, 506900, 532245, 575400, 608280, 709660, 760350, 851592, 887075, 1013800, 1064490, 1419320, 1520700, 1774150, 2128980, 2661225, 3041400, 3548300, 4257960, 5322450, 7096600, 10644900, 21289800]

約数ペア:

[(1, 21289800), (2, 10644900), (3, 7096600), (4, 5322450), (5, 4257960), (6, 3548300), (7, 3041400), (8, 2661225), (10, 2128980), (12, 1774150), (14, 1520700), (15, 1419320), (20, 1064490), (21, 1013800), (24, 887075), (25, 851592), (28, 760350), (30, 709660), (35, 608280), (37, 575400), (40, 532245), (42, 506900), (50, 425796), (56, 380175), (60, 354830), (70, 304140), (74, 287700), (75, 283864), (84, 253450), (100, 212898), (105, 202760), (111, 191800), (120, 177415), (137, 155400), (140, 152070), (148, 143850), (150, 141932), (168, 126725), (175, 121656), (185, 115080), (200, 106449), (210, 101380), (222, 95900), (259, 82200), (274, 77700), (280, 76035), (296, 71925), (300, 70966), (350, 60828), (370, 57540), (411, 51800), (420, 50690), (444, 47950), (518, 41100), (525, 40552), (548, 38850), (555, 38360), (600, 35483), (685, 31080), (700, 30414), (740, 28770), (777, 27400), (822, 25900), (840, 25345), (888, 23975), (925, 23016), (959, 22200), (1036, 20550), (1050, 20276), (1096, 19425), (1110, 19180), (1295, 16440), (1370, 15540), (1400, 15207), (1480, 14385), (1554, 13700), (1644, 12950), (1850, 11508), (1918, 11100), (2055, 10360), (2072, 10275), (2100, 10138), (2220, 9590), (2590, 8220), (2740, 7770), (2775, 7672), (2877, 7400), (3108, 6850), (3288, 6475), (3425, 6216), (3700, 5754), (3836, 5550), (3885, 5480), (4110, 5180), (4200, 5069), (4440, 4795)]