21334880

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{443}}^1$

素因数の和:508

約数の個数: 96

約数和(自身を含む): 59076864

約数和(自身を除く): 37741984

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 56, 70, 80, 86, 112, 140, 160, 172, 215, 224, 280, 301, 344, 430, 443, 560, 602, 688, 860, 886, 1120, 1204, 1376, 1505, 1720, 1772, 2215, 2408, 3010, 3101, 3440, 3544, 4430, 4816, 6020, 6202, 6880, 7088, 8860, 9632, 12040, 12404, 14176, 15505, 17720, 19049, 24080, 24808, 31010, 35440, 38098, 48160, 49616, 62020, 70880, 76196, 95245, 99232, 124040, 133343, 152392, 190490, 248080, 266686, 304784, 380980, 496160, 533372, 609568, 666715, 761960, 1066744, 1333430, 1523920, 2133488, 2666860, 3047840, 4266976, 5333720, 10667440, 21334880]

約数ペア:

[(1, 21334880), (2, 10667440), (4, 5333720), (5, 4266976), (7, 3047840), (8, 2666860), (10, 2133488), (14, 1523920), (16, 1333430), (20, 1066744), (28, 761960), (32, 666715), (35, 609568), (40, 533372), (43, 496160), (56, 380980), (70, 304784), (80, 266686), (86, 248080), (112, 190490), (140, 152392), (160, 133343), (172, 124040), (215, 99232), (224, 95245), (280, 76196), (301, 70880), (344, 62020), (430, 49616), (443, 48160), (560, 38098), (602, 35440), (688, 31010), (860, 24808), (886, 24080), (1120, 19049), (1204, 17720), (1376, 15505), (1505, 14176), (1720, 12404), (1772, 12040), (2215, 9632), (2408, 8860), (3010, 7088), (3101, 6880), (3440, 6202), (3544, 6020), (4430, 4816)]