20691712

素因数分解:

$2^8\times {\mathrm{131}}^1\times {\mathrm{617}}^1$

素因数の和:764

約数の個数: 36

約数和(自身を含む): 41685336

約数和(自身を除く): 20993624

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 131, 256, 262, 524, 617, 1048, 1234, 2096, 2468, 4192, 4936, 8384, 9872, 16768, 19744, 33536, 39488, 78976, 80827, 157952, 161654, 323308, 646616, 1293232, 2586464, 5172928, 10345856, 20691712]

約数ペア:

[(1, 20691712), (2, 10345856), (4, 5172928), (8, 2586464), (16, 1293232), (32, 646616), (64, 323308), (128, 161654), (131, 157952), (256, 80827), (262, 78976), (524, 39488), (617, 33536), (1048, 19744), (1234, 16768), (2096, 9872), (2468, 8384), (4192, 4936)]