21430272

素因数分解:

$2^{16}\times 3^1\times {\mathrm{109}}^1$

素因数の和:144

約数の個数: 68

約数和(自身を含む): 57671240

約数和(自身を除く): 36240968

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 109, 128, 192, 218, 256, 327, 384, 436, 512, 654, 768, 872, 1024, 1308, 1536, 1744, 2048, 2616, 3072, 3488, 4096, 5232, 6144, 6976, 8192, 10464, 12288, 13952, 16384, 20928, 24576, 27904, 32768, 41856, 49152, 55808, 65536, 83712, 98304, 111616, 167424, 196608, 223232, 334848, 446464, 669696, 892928, 1339392, 1785856, 2678784, 3571712, 5357568, 7143424, 10715136, 21430272]

約数ペア:

[(1, 21430272), (2, 10715136), (3, 7143424), (4, 5357568), (6, 3571712), (8, 2678784), (12, 1785856), (16, 1339392), (24, 892928), (32, 669696), (48, 446464), (64, 334848), (96, 223232), (109, 196608), (128, 167424), (192, 111616), (218, 98304), (256, 83712), (327, 65536), (384, 55808), (436, 49152), (512, 41856), (654, 32768), (768, 27904), (872, 24576), (1024, 20928), (1308, 16384), (1536, 13952), (1744, 12288), (2048, 10464), (2616, 8192), (3072, 6976), (3488, 6144), (4096, 5232)]