21102549

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{7621}}^1$

素因数の和:7708

約数の個数: 16

約数和(自身を含む): 30731904

約数和(自身を除く): 9629355

約数列:

[1, 3, 13, 39, 71, 213, 923, 2769, 7621, 22863, 99073, 297219, 541091, 1623273, 7034183, 21102549]

約数ペア:

[(1, 21102549), (3, 7034183), (13, 1623273), (39, 541091), (71, 297219), (213, 99073), (923, 22863), (2769, 7621)]