21499244

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{13337}}^1$

素因数の和:13385

約数の個数: 24

約数和(自身を含む): 41827968

約数和(自身を除く): 20328724

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 13337, 26674, 53348, 173381, 346762, 413447, 693524, 826894, 1653788, 5374811, 10749622, 21499244]

約数ペア:

[(1, 21499244), (2, 10749622), (4, 5374811), (13, 1653788), (26, 826894), (31, 693524), (52, 413447), (62, 346762), (124, 173381), (403, 53348), (806, 26674), (1612, 13337)]