20731906

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{83}}^1\times {\mathrm{739}}^1$

素因数の和:850

約数の個数: 24

約数和(自身を含む): 34125840

約数和(自身を除く): 13393934

約数列:

[1, 2, 13, 26, 83, 166, 169, 338, 739, 1079, 1478, 2158, 9607, 14027, 19214, 28054, 61337, 122674, 124891, 249782, 797381, 1594762, 10365953, 20731906]

約数ペア:

[(1, 20731906), (2, 10365953), (13, 1594762), (26, 797381), (83, 249782), (166, 124891), (169, 122674), (338, 61337), (739, 28054), (1079, 19214), (1478, 14027), (2158, 9607)]