19959808

素因数分解:

$2^{12}\times {\mathrm{11}}^1\times {\mathrm{443}}^1$

素因数の和:478

約数の個数: 52

約数和(自身を含む): 43641648

約数和(自身を除く): 23681840

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 128, 176, 256, 352, 443, 512, 704, 886, 1024, 1408, 1772, 2048, 2816, 3544, 4096, 4873, 5632, 7088, 9746, 11264, 14176, 19492, 22528, 28352, 38984, 45056, 56704, 77968, 113408, 155936, 226816, 311872, 453632, 623744, 907264, 1247488, 1814528, 2494976, 4989952, 9979904, 19959808]

約数ペア:

[(1, 19959808), (2, 9979904), (4, 4989952), (8, 2494976), (11, 1814528), (16, 1247488), (22, 907264), (32, 623744), (44, 453632), (64, 311872), (88, 226816), (128, 155936), (176, 113408), (256, 77968), (352, 56704), (443, 45056), (512, 38984), (704, 28352), (886, 22528), (1024, 19492), (1408, 14176), (1772, 11264), (2048, 9746), (2816, 7088), (3544, 5632), (4096, 4873)]