21487872

素因数分解:

$2^8\times 3^1\times 7^2\times {\mathrm{571}}^1$

素因数の和:604

約数の個数: 108

約数和(自身を含む): 66642576

約数和(自身を除く): 45154704

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, 294, 336, 384, 392, 448, 571, 588, 672, 768, 784, 896, 1142, 1176, 1344, 1568, 1713, 1792, 2284, 2352, 2688, 3136, 3426, 3997, 4568, 4704, 5376, 6272, 6852, 7994, 9136, 9408, 11991, 12544, 13704, 15988, 18272, 18816, 23982, 27408, 27979, 31976, 36544, 37632, 47964, 54816, 55958, 63952, 73088, 83937, 95928, 109632, 111916, 127904, 146176, 167874, 191856, 219264, 223832, 255808, 335748, 383712, 438528, 447664, 511616, 671496, 767424, 895328, 1023232, 1342992, 1534848, 1790656, 2685984, 3069696, 3581312, 5371968, 7162624, 10743936, 21487872]

約数ペア:

[(1, 21487872), (2, 10743936), (3, 7162624), (4, 5371968), (6, 3581312), (7, 3069696), (8, 2685984), (12, 1790656), (14, 1534848), (16, 1342992), (21, 1023232), (24, 895328), (28, 767424), (32, 671496), (42, 511616), (48, 447664), (49, 438528), (56, 383712), (64, 335748), (84, 255808), (96, 223832), (98, 219264), (112, 191856), (128, 167874), (147, 146176), (168, 127904), (192, 111916), (196, 109632), (224, 95928), (256, 83937), (294, 73088), (336, 63952), (384, 55958), (392, 54816), (448, 47964), (571, 37632), (588, 36544), (672, 31976), (768, 27979), (784, 27408), (896, 23982), (1142, 18816), (1176, 18272), (1344, 15988), (1568, 13704), (1713, 12544), (1792, 11991), (2284, 9408), (2352, 9136), (2688, 7994), (3136, 6852), (3426, 6272), (3997, 5376), (4568, 4704)]