21988263

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{35069}}^1$

素因数の和:35102

約数の個数: 16

約数和(自身を含む): 33667200

約数和(自身を除く): 11678937

約数列:

[1, 3, 11, 19, 33, 57, 209, 627, 35069, 105207, 385759, 666311, 1157277, 1998933, 7329421, 21988263]

約数ペア:

[(1, 21988263), (3, 7329421), (11, 1998933), (19, 1157277), (33, 666311), (57, 385759), (209, 105207), (627, 35069)]