21050400

素因数分解:

$2^5\times 3^1\times 5^2\times 7^2\times {\mathrm{179}}^1$

素因数の和:216

約数の個数: 216

約数和(自身を含む): 80151120

約数和(自身を除く): 59100720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 32, 35, 40, 42, 48, 49, 50, 56, 60, 70, 75, 80, 84, 96, 98, 100, 105, 112, 120, 140, 147, 150, 160, 168, 175, 179, 196, 200, 210, 224, 240, 245, 280, 294, 300, 336, 350, 358, 392, 400, 420, 480, 490, 525, 537, 560, 588, 600, 672, 700, 716, 735, 784, 800, 840, 895, 980, 1050, 1074, 1120, 1176, 1200, 1225, 1253, 1400, 1432, 1470, 1568, 1680, 1790, 1960, 2100, 2148, 2352, 2400, 2450, 2506, 2685, 2800, 2864, 2940, 3360, 3580, 3675, 3759, 3920, 4200, 4296, 4475, 4704, 4900, 5012, 5370, 5600, 5728, 5880, 6265, 7160, 7350, 7518, 7840, 8400, 8592, 8771, 8950, 9800, 10024, 10740, 11760, 12530, 13425, 14320, 14700, 15036, 16800, 17184, 17542, 17900, 18795, 19600, 20048, 21480, 23520, 25060, 26313, 26850, 28640, 29400, 30072, 31325, 35084, 35800, 37590, 39200, 40096, 42960, 43855, 50120, 52626, 53700, 58800, 60144, 62650, 70168, 71600, 75180, 85920, 87710, 93975, 100240, 105252, 107400, 117600, 120288, 125300, 131565, 140336, 143200, 150360, 175420, 187950, 200480, 210504, 214800, 219275, 250600, 263130, 280672, 300720, 350840, 375900, 421008, 429600, 438550, 501200, 526260, 601440, 657825, 701680, 751800, 842016, 877100, 1002400, 1052520, 1315650, 1403360, 1503600, 1754200, 2105040, 2631300, 3007200, 3508400, 4210080, 5262600, 7016800, 10525200, 21050400]

約数ペア:

[(1, 21050400), (2, 10525200), (3, 7016800), (4, 5262600), (5, 4210080), (6, 3508400), (7, 3007200), (8, 2631300), (10, 2105040), (12, 1754200), (14, 1503600), (15, 1403360), (16, 1315650), (20, 1052520), (21, 1002400), (24, 877100), (25, 842016), (28, 751800), (30, 701680), (32, 657825), (35, 601440), (40, 526260), (42, 501200), (48, 438550), (49, 429600), (50, 421008), (56, 375900), (60, 350840), (70, 300720), (75, 280672), (80, 263130), (84, 250600), (96, 219275), (98, 214800), (100, 210504), (105, 200480), (112, 187950), (120, 175420), (140, 150360), (147, 143200), (150, 140336), (160, 131565), (168, 125300), (175, 120288), (179, 117600), (196, 107400), (200, 105252), (210, 100240), (224, 93975), (240, 87710), (245, 85920), (280, 75180), (294, 71600), (300, 70168), (336, 62650), (350, 60144), (358, 58800), (392, 53700), (400, 52626), (420, 50120), (480, 43855), (490, 42960), (525, 40096), (537, 39200), (560, 37590), (588, 35800), (600, 35084), (672, 31325), (700, 30072), (716, 29400), (735, 28640), (784, 26850), (800, 26313), (840, 25060), (895, 23520), (980, 21480), (1050, 20048), (1074, 19600), (1120, 18795), (1176, 17900), (1200, 17542), (1225, 17184), (1253, 16800), (1400, 15036), (1432, 14700), (1470, 14320), (1568, 13425), (1680, 12530), (1790, 11760), (1960, 10740), (2100, 10024), (2148, 9800), (2352, 8950), (2400, 8771), (2450, 8592), (2506, 8400), (2685, 7840), (2800, 7518), (2864, 7350), (2940, 7160), (3360, 6265), (3580, 5880), (3675, 5728), (3759, 5600), (3920, 5370), (4200, 5012), (4296, 4900), (4475, 4704)]