20882691

素因数分解:

$3^5\times {\mathrm{19}}^1\times {\mathrm{4523}}^1$

素因数の和:4557

約数の個数: 24

約数和(自身を含む): 32934720

約数和(自身を除く): 12052029

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 243, 513, 1539, 4523, 4617, 13569, 40707, 85937, 122121, 257811, 366363, 773433, 1099089, 2320299, 6960897, 20882691]

約数ペア:

[(1, 20882691), (3, 6960897), (9, 2320299), (19, 1099089), (27, 773433), (57, 366363), (81, 257811), (171, 122121), (243, 85937), (513, 40707), (1539, 13569), (4523, 4617)]