21299712

素因数分解:

$2^9\times 3^1\times 7^2\times {\mathrm{283}}^1$

素因数の和:318

約数の個数: 120

約数和(自身を含む): 66241296

約数和(自身を除く): 44941584

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 49, 56, 64, 84, 96, 98, 112, 128, 147, 168, 192, 196, 224, 256, 283, 294, 336, 384, 392, 448, 512, 566, 588, 672, 768, 784, 849, 896, 1132, 1176, 1344, 1536, 1568, 1698, 1792, 1981, 2264, 2352, 2688, 3136, 3396, 3584, 3962, 4528, 4704, 5376, 5943, 6272, 6792, 7924, 9056, 9408, 10752, 11886, 12544, 13584, 13867, 15848, 18112, 18816, 23772, 25088, 27168, 27734, 31696, 36224, 37632, 41601, 47544, 54336, 55468, 63392, 72448, 75264, 83202, 95088, 108672, 110936, 126784, 144896, 166404, 190176, 217344, 221872, 253568, 332808, 380352, 434688, 443744, 507136, 665616, 760704, 887488, 1014272, 1331232, 1521408, 1774976, 2662464, 3042816, 3549952, 5324928, 7099904, 10649856, 21299712]

約数ペア:

[(1, 21299712), (2, 10649856), (3, 7099904), (4, 5324928), (6, 3549952), (7, 3042816), (8, 2662464), (12, 1774976), (14, 1521408), (16, 1331232), (21, 1014272), (24, 887488), (28, 760704), (32, 665616), (42, 507136), (48, 443744), (49, 434688), (56, 380352), (64, 332808), (84, 253568), (96, 221872), (98, 217344), (112, 190176), (128, 166404), (147, 144896), (168, 126784), (192, 110936), (196, 108672), (224, 95088), (256, 83202), (283, 75264), (294, 72448), (336, 63392), (384, 55468), (392, 54336), (448, 47544), (512, 41601), (566, 37632), (588, 36224), (672, 31696), (768, 27734), (784, 27168), (849, 25088), (896, 23772), (1132, 18816), (1176, 18112), (1344, 15848), (1536, 13867), (1568, 13584), (1698, 12544), (1792, 11886), (1981, 10752), (2264, 9408), (2352, 9056), (2688, 7924), (3136, 6792), (3396, 6272), (3584, 5943), (3962, 5376), (4528, 4704)]