21357600

素因数分解:

$2^5\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{809}}^1$

素因数の和:843

約数の個数: 144

約数和(自身を含む): 75932640

約数和(自身を除く): 54575040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 25, 30, 32, 33, 40, 44, 48, 50, 55, 60, 66, 75, 80, 88, 96, 100, 110, 120, 132, 150, 160, 165, 176, 200, 220, 240, 264, 275, 300, 330, 352, 400, 440, 480, 528, 550, 600, 660, 800, 809, 825, 880, 1056, 1100, 1200, 1320, 1618, 1650, 1760, 2200, 2400, 2427, 2640, 3236, 3300, 4045, 4400, 4854, 5280, 6472, 6600, 8090, 8800, 8899, 9708, 12135, 12944, 13200, 16180, 17798, 19416, 20225, 24270, 25888, 26400, 26697, 32360, 35596, 38832, 40450, 44495, 48540, 53394, 60675, 64720, 71192, 77664, 80900, 88990, 97080, 106788, 121350, 129440, 133485, 142384, 161800, 177980, 194160, 213576, 222475, 242700, 266970, 284768, 323600, 355960, 388320, 427152, 444950, 485400, 533940, 647200, 667425, 711920, 854304, 889900, 970800, 1067880, 1334850, 1423840, 1779800, 1941600, 2135760, 2669700, 3559600, 4271520, 5339400, 7119200, 10678800, 21357600]

約数ペア:

[(1, 21357600), (2, 10678800), (3, 7119200), (4, 5339400), (5, 4271520), (6, 3559600), (8, 2669700), (10, 2135760), (11, 1941600), (12, 1779800), (15, 1423840), (16, 1334850), (20, 1067880), (22, 970800), (24, 889900), (25, 854304), (30, 711920), (32, 667425), (33, 647200), (40, 533940), (44, 485400), (48, 444950), (50, 427152), (55, 388320), (60, 355960), (66, 323600), (75, 284768), (80, 266970), (88, 242700), (96, 222475), (100, 213576), (110, 194160), (120, 177980), (132, 161800), (150, 142384), (160, 133485), (165, 129440), (176, 121350), (200, 106788), (220, 97080), (240, 88990), (264, 80900), (275, 77664), (300, 71192), (330, 64720), (352, 60675), (400, 53394), (440, 48540), (480, 44495), (528, 40450), (550, 38832), (600, 35596), (660, 32360), (800, 26697), (809, 26400), (825, 25888), (880, 24270), (1056, 20225), (1100, 19416), (1200, 17798), (1320, 16180), (1618, 13200), (1650, 12944), (1760, 12135), (2200, 9708), (2400, 8899), (2427, 8800), (2640, 8090), (3236, 6600), (3300, 6472), (4045, 5280), (4400, 4854)]