21086800

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{443}}^1$

素因数の和:485

約数の個数: 120

約数和(自身を含む): 61442496

約数和(自身を除く): 40355696

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 25, 28, 34, 35, 40, 50, 56, 68, 70, 80, 85, 100, 112, 119, 136, 140, 170, 175, 200, 238, 272, 280, 340, 350, 400, 425, 443, 476, 560, 595, 680, 700, 850, 886, 952, 1190, 1360, 1400, 1700, 1772, 1904, 2215, 2380, 2800, 2975, 3101, 3400, 3544, 4430, 4760, 5950, 6202, 6800, 7088, 7531, 8860, 9520, 11075, 11900, 12404, 15062, 15505, 17720, 22150, 23800, 24808, 30124, 31010, 35440, 37655, 44300, 47600, 49616, 52717, 60248, 62020, 75310, 77525, 88600, 105434, 120496, 124040, 150620, 155050, 177200, 188275, 210868, 248080, 263585, 301240, 310100, 376550, 421736, 527170, 602480, 620200, 753100, 843472, 1054340, 1240400, 1317925, 1506200, 2108680, 2635850, 3012400, 4217360, 5271700, 10543400, 21086800]

約数ペア:

[(1, 21086800), (2, 10543400), (4, 5271700), (5, 4217360), (7, 3012400), (8, 2635850), (10, 2108680), (14, 1506200), (16, 1317925), (17, 1240400), (20, 1054340), (25, 843472), (28, 753100), (34, 620200), (35, 602480), (40, 527170), (50, 421736), (56, 376550), (68, 310100), (70, 301240), (80, 263585), (85, 248080), (100, 210868), (112, 188275), (119, 177200), (136, 155050), (140, 150620), (170, 124040), (175, 120496), (200, 105434), (238, 88600), (272, 77525), (280, 75310), (340, 62020), (350, 60248), (400, 52717), (425, 49616), (443, 47600), (476, 44300), (560, 37655), (595, 35440), (680, 31010), (700, 30124), (850, 24808), (886, 23800), (952, 22150), (1190, 17720), (1360, 15505), (1400, 15062), (1700, 12404), (1772, 11900), (1904, 11075), (2215, 9520), (2380, 8860), (2800, 7531), (2975, 7088), (3101, 6800), (3400, 6202), (3544, 5950), (4430, 4760)]