21788831

素因数分解:

${\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{173}}^1$

素因数の和:346

約数の個数: 16

約数和(自身を含む): 23427360

約数和(自身を除く): 1638529

約数列:

[1, 29, 43, 101, 173, 1247, 2929, 4343, 5017, 7439, 17473, 125947, 215731, 506717, 751339, 21788831]

約数ペア:

[(1, 21788831), (29, 751339), (43, 506717), (101, 215731), (173, 125947), (1247, 17473), (2929, 7439), (4343, 5017)]