21346221

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{593}}^1$

素因数の和:693

約数の個数: 24

約数和(自身を含む): 31306176

約数和(自身を除く): 9959955

約数列:

[1, 3, 13, 39, 71, 169, 213, 507, 593, 923, 1779, 2769, 7709, 11999, 23127, 35997, 42103, 100217, 126309, 300651, 547339, 1642017, 7115407, 21346221]

約数ペア:

[(1, 21346221), (3, 7115407), (13, 1642017), (39, 547339), (71, 300651), (169, 126309), (213, 100217), (507, 42103), (593, 35997), (923, 23127), (1779, 11999), (2769, 7709)]