21500903

素因数分解:

${\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{439}}^1$

素因数の和:566

約数の個数: 16

約数和(自身を含む): 23696640

約数和(自身を除く): 2195737

約数列:

[1, 17, 43, 67, 439, 731, 1139, 2881, 7463, 18877, 29413, 48977, 320909, 500021, 1264759, 21500903]

約数ペア:

[(1, 21500903), (17, 1264759), (43, 500021), (67, 320909), (439, 48977), (731, 29413), (1139, 18877), (2881, 7463)]