21989006

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{7759}}^1$

素因数の和:7883

約数の個数: 16

約数和(自身を含む): 35851200

約数和(自身を除く): 13862194

約数列:

[1, 2, 13, 26, 109, 218, 1417, 2834, 7759, 15518, 100867, 201734, 845731, 1691462, 10994503, 21989006]

約数ペア:

[(1, 21989006), (2, 10994503), (13, 1691462), (26, 845731), (109, 201734), (218, 100867), (1417, 15518), (2834, 7759)]