21290523

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{1451}}^1$

素因数の和:1594

約数の個数: 16

約数和(自身を含む): 29225856

約数和(自身を除く): 7935333

約数列:

[1, 3, 67, 73, 201, 219, 1451, 4353, 4891, 14673, 97217, 105923, 291651, 317769, 7096841, 21290523]

約数ペア:

[(1, 21290523), (3, 7096841), (67, 317769), (73, 291651), (201, 105923), (219, 97217), (1451, 14673), (4353, 4891)]