21405696

素因数分解:

$2^{13}\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1$

素因数の和:109

約数の個数: 112

約数和(自身を含む): 62386464

約数和(自身を除く): 40980768

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 64, 67, 78, 96, 104, 128, 134, 156, 192, 201, 208, 256, 268, 312, 384, 402, 416, 512, 536, 624, 768, 804, 832, 871, 1024, 1072, 1248, 1536, 1608, 1664, 1742, 2048, 2144, 2496, 2613, 3072, 3216, 3328, 3484, 4096, 4288, 4992, 5226, 6144, 6432, 6656, 6968, 8192, 8576, 9984, 10452, 12288, 12864, 13312, 13936, 17152, 19968, 20904, 24576, 25728, 26624, 27872, 34304, 39936, 41808, 51456, 53248, 55744, 68608, 79872, 83616, 102912, 106496, 111488, 137216, 159744, 167232, 205824, 222976, 274432, 319488, 334464, 411648, 445952, 548864, 668928, 823296, 891904, 1337856, 1646592, 1783808, 2675712, 3567616, 5351424, 7135232, 10702848, 21405696]

約数ペア:

[(1, 21405696), (2, 10702848), (3, 7135232), (4, 5351424), (6, 3567616), (8, 2675712), (12, 1783808), (13, 1646592), (16, 1337856), (24, 891904), (26, 823296), (32, 668928), (39, 548864), (48, 445952), (52, 411648), (64, 334464), (67, 319488), (78, 274432), (96, 222976), (104, 205824), (128, 167232), (134, 159744), (156, 137216), (192, 111488), (201, 106496), (208, 102912), (256, 83616), (268, 79872), (312, 68608), (384, 55744), (402, 53248), (416, 51456), (512, 41808), (536, 39936), (624, 34304), (768, 27872), (804, 26624), (832, 25728), (871, 24576), (1024, 20904), (1072, 19968), (1248, 17152), (1536, 13936), (1608, 13312), (1664, 12864), (1742, 12288), (2048, 10452), (2144, 9984), (2496, 8576), (2613, 8192), (3072, 6968), (3216, 6656), (3328, 6432), (3484, 6144), (4096, 5226), (4288, 4992)]