21109200

素因数分解:

$2^4\times 3^1\times 5^2\times 7^2\times {\mathrm{359}}^1$

素因数の和:394

約数の個数: 180

約数和(自身を含む): 78878880

約数和(自身を除く): 57769680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 35, 40, 42, 48, 49, 50, 56, 60, 70, 75, 80, 84, 98, 100, 105, 112, 120, 140, 147, 150, 168, 175, 196, 200, 210, 240, 245, 280, 294, 300, 336, 350, 359, 392, 400, 420, 490, 525, 560, 588, 600, 700, 718, 735, 784, 840, 980, 1050, 1077, 1176, 1200, 1225, 1400, 1436, 1470, 1680, 1795, 1960, 2100, 2154, 2352, 2450, 2513, 2800, 2872, 2940, 3590, 3675, 3920, 4200, 4308, 4900, 5026, 5385, 5744, 5880, 7180, 7350, 7539, 8400, 8616, 8975, 9800, 10052, 10770, 11760, 12565, 14360, 14700, 15078, 17232, 17591, 17950, 19600, 20104, 21540, 25130, 26925, 28720, 29400, 30156, 35182, 35900, 37695, 40208, 43080, 50260, 52773, 53850, 58800, 60312, 62825, 70364, 71800, 75390, 86160, 87955, 100520, 105546, 107700, 120624, 125650, 140728, 143600, 150780, 175910, 188475, 201040, 211092, 215400, 251300, 263865, 281456, 301560, 351820, 376950, 422184, 430800, 439775, 502600, 527730, 603120, 703640, 753900, 844368, 879550, 1005200, 1055460, 1319325, 1407280, 1507800, 1759100, 2110920, 2638650, 3015600, 3518200, 4221840, 5277300, 7036400, 10554600, 21109200]

約数ペア:

[(1, 21109200), (2, 10554600), (3, 7036400), (4, 5277300), (5, 4221840), (6, 3518200), (7, 3015600), (8, 2638650), (10, 2110920), (12, 1759100), (14, 1507800), (15, 1407280), (16, 1319325), (20, 1055460), (21, 1005200), (24, 879550), (25, 844368), (28, 753900), (30, 703640), (35, 603120), (40, 527730), (42, 502600), (48, 439775), (49, 430800), (50, 422184), (56, 376950), (60, 351820), (70, 301560), (75, 281456), (80, 263865), (84, 251300), (98, 215400), (100, 211092), (105, 201040), (112, 188475), (120, 175910), (140, 150780), (147, 143600), (150, 140728), (168, 125650), (175, 120624), (196, 107700), (200, 105546), (210, 100520), (240, 87955), (245, 86160), (280, 75390), (294, 71800), (300, 70364), (336, 62825), (350, 60312), (359, 58800), (392, 53850), (400, 52773), (420, 50260), (490, 43080), (525, 40208), (560, 37695), (588, 35900), (600, 35182), (700, 30156), (718, 29400), (735, 28720), (784, 26925), (840, 25130), (980, 21540), (1050, 20104), (1077, 19600), (1176, 17950), (1200, 17591), (1225, 17232), (1400, 15078), (1436, 14700), (1470, 14360), (1680, 12565), (1795, 11760), (1960, 10770), (2100, 10052), (2154, 9800), (2352, 8975), (2450, 8616), (2513, 8400), (2800, 7539), (2872, 7350), (2940, 7180), (3590, 5880), (3675, 5744), (3920, 5385), (4200, 5026), (4308, 4900)]