21201171

素因数分解:

$3^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1\times {\mathrm{739}}^1$

素因数の和:946

約数の個数: 16

約数和(自身を含む): 28913280

約数和(自身を除く): 7712109

約数列:

[1, 3, 73, 131, 219, 393, 739, 2217, 9563, 28689, 53947, 96809, 161841, 290427, 7067057, 21201171]

約数ペア:

[(1, 21201171), (3, 7067057), (73, 290427), (131, 161841), (219, 96809), (393, 53947), (739, 28689), (2217, 9563)]