21831040

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{443}}^1$

素因数の和:480

約数の個数: 128

約数和(自身を含む): 65214720

約数和(自身を除く): 43383680

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 88, 110, 112, 128, 140, 154, 160, 176, 220, 224, 280, 308, 320, 352, 385, 440, 443, 448, 560, 616, 640, 704, 770, 880, 886, 896, 1120, 1232, 1408, 1540, 1760, 1772, 2215, 2240, 2464, 3080, 3101, 3520, 3544, 4430, 4480, 4873, 4928, 6160, 6202, 7040, 7088, 8860, 9746, 9856, 12320, 12404, 14176, 15505, 17720, 19492, 24365, 24640, 24808, 28352, 31010, 34111, 35440, 38984, 48730, 49280, 49616, 56704, 62020, 68222, 70880, 77968, 97460, 99232, 124040, 136444, 141760, 155936, 170555, 194920, 198464, 248080, 272888, 283520, 311872, 341110, 389840, 396928, 496160, 545776, 623744, 682220, 779680, 992320, 1091552, 1364440, 1559360, 1984640, 2183104, 2728880, 3118720, 4366208, 5457760, 10915520, 21831040]

約数ペア:

[(1, 21831040), (2, 10915520), (4, 5457760), (5, 4366208), (7, 3118720), (8, 2728880), (10, 2183104), (11, 1984640), (14, 1559360), (16, 1364440), (20, 1091552), (22, 992320), (28, 779680), (32, 682220), (35, 623744), (40, 545776), (44, 496160), (55, 396928), (56, 389840), (64, 341110), (70, 311872), (77, 283520), (80, 272888), (88, 248080), (110, 198464), (112, 194920), (128, 170555), (140, 155936), (154, 141760), (160, 136444), (176, 124040), (220, 99232), (224, 97460), (280, 77968), (308, 70880), (320, 68222), (352, 62020), (385, 56704), (440, 49616), (443, 49280), (448, 48730), (560, 38984), (616, 35440), (640, 34111), (704, 31010), (770, 28352), (880, 24808), (886, 24640), (896, 24365), (1120, 19492), (1232, 17720), (1408, 15505), (1540, 14176), (1760, 12404), (1772, 12320), (2215, 9856), (2240, 9746), (2464, 8860), (3080, 7088), (3101, 7040), (3520, 6202), (3544, 6160), (4430, 4928), (4480, 4873)]