21493248

素因数分解:

$2^9\times 3^1\times 7^1\times {\mathrm{1999}}^1$

素因数の和:2027

約数の個数: 80

約数和(自身を含む): 65472000

約数和(自身を除く): 43978752

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 96, 112, 128, 168, 192, 224, 256, 336, 384, 448, 512, 672, 768, 896, 1344, 1536, 1792, 1999, 2688, 3584, 3998, 5376, 5997, 7996, 10752, 11994, 13993, 15992, 23988, 27986, 31984, 41979, 47976, 55972, 63968, 83958, 95952, 111944, 127936, 167916, 191904, 223888, 255872, 335832, 383808, 447776, 511744, 671664, 767616, 895552, 1023488, 1343328, 1535232, 1791104, 2686656, 3070464, 3582208, 5373312, 7164416, 10746624, 21493248]

約数ペア:

[(1, 21493248), (2, 10746624), (3, 7164416), (4, 5373312), (6, 3582208), (7, 3070464), (8, 2686656), (12, 1791104), (14, 1535232), (16, 1343328), (21, 1023488), (24, 895552), (28, 767616), (32, 671664), (42, 511744), (48, 447776), (56, 383808), (64, 335832), (84, 255872), (96, 223888), (112, 191904), (128, 167916), (168, 127936), (192, 111944), (224, 95952), (256, 83958), (336, 63968), (384, 55972), (448, 47976), (512, 41979), (672, 31984), (768, 27986), (896, 23988), (1344, 15992), (1536, 13993), (1792, 11994), (1999, 10752), (2688, 7996), (3584, 5997), (3998, 5376)]