31485519

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{613}}^1$

素因数の和:1071

約数の個数: 24

約数和(自身を含む): 49169120

約数和(自身を除く): 17683601

約数列:

[1, 3, 9, 13, 39, 117, 439, 613, 1317, 1839, 3951, 5517, 5707, 7969, 17121, 23907, 51363, 71721, 269107, 807321, 2421963, 3498391, 10495173, 31485519]

約数ペア:

[(1, 31485519), (3, 10495173), (9, 3498391), (13, 2421963), (39, 807321), (117, 269107), (439, 71721), (613, 51363), (1317, 23907), (1839, 17121), (3951, 7969), (5517, 5707)]