21238800

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{1609}}^1$

素因数の和:1641

約数の個数: 120

約数和(自身を含む): 74266080

約数和(自身を除く): 53027280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 25, 30, 33, 40, 44, 48, 50, 55, 60, 66, 75, 80, 88, 100, 110, 120, 132, 150, 165, 176, 200, 220, 240, 264, 275, 300, 330, 400, 440, 528, 550, 600, 660, 825, 880, 1100, 1200, 1320, 1609, 1650, 2200, 2640, 3218, 3300, 4400, 4827, 6436, 6600, 8045, 9654, 12872, 13200, 16090, 17699, 19308, 24135, 25744, 32180, 35398, 38616, 40225, 48270, 53097, 64360, 70796, 77232, 80450, 88495, 96540, 106194, 120675, 128720, 141592, 160900, 176990, 193080, 212388, 241350, 265485, 283184, 321800, 353980, 386160, 424776, 442475, 482700, 530970, 643600, 707960, 849552, 884950, 965400, 1061940, 1327425, 1415920, 1769900, 1930800, 2123880, 2654850, 3539800, 4247760, 5309700, 7079600, 10619400, 21238800]

約数ペア:

[(1, 21238800), (2, 10619400), (3, 7079600), (4, 5309700), (5, 4247760), (6, 3539800), (8, 2654850), (10, 2123880), (11, 1930800), (12, 1769900), (15, 1415920), (16, 1327425), (20, 1061940), (22, 965400), (24, 884950), (25, 849552), (30, 707960), (33, 643600), (40, 530970), (44, 482700), (48, 442475), (50, 424776), (55, 386160), (60, 353980), (66, 321800), (75, 283184), (80, 265485), (88, 241350), (100, 212388), (110, 193080), (120, 176990), (132, 160900), (150, 141592), (165, 128720), (176, 120675), (200, 106194), (220, 96540), (240, 88495), (264, 80450), (275, 77232), (300, 70796), (330, 64360), (400, 53097), (440, 48270), (528, 40225), (550, 38616), (600, 35398), (660, 32180), (825, 25744), (880, 24135), (1100, 19308), (1200, 17699), (1320, 16090), (1609, 13200), (1650, 12872), (2200, 9654), (2640, 8045), (3218, 6600), (3300, 6436), (4400, 4827)]