21248513

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1069}}^1$

素因数の和:1232

約数の個数: 16

約数和(自身を含む): 25166400

約数和(自身を除く): 3917887

約数列:

[1, 11, 13, 139, 143, 1069, 1529, 1807, 11759, 13897, 19877, 148591, 152867, 1634501, 1931683, 21248513]

約数ペア:

[(1, 21248513), (11, 1931683), (13, 1634501), (139, 152867), (143, 148591), (1069, 19877), (1529, 13897), (1807, 11759)]