13219521

素因数分解:

$3^1\times 7^1\times {\mathrm{691}}^1\times {\mathrm{911}}^1$

素因数の和:1612

約数の個数: 16

約数和(自身を含む): 20195328

約数和(自身を除く): 6975807

約数列:

[1, 3, 7, 21, 691, 911, 2073, 2733, 4837, 6377, 14511, 19131, 629501, 1888503, 4406507, 13219521]

約数ペア:

[(1, 13219521), (3, 4406507), (7, 1888503), (21, 629501), (691, 19131), (911, 14511), (2073, 6377), (2733, 4837)]