26131287

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{199}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 44505600

約数和(自身を除く): 18374313

約数列:

[1, 3, 7, 13, 21, 37, 39, 91, 111, 169, 199, 259, 273, 481, 507, 597, 777, 1183, 1393, 1443, 2587, 3367, 3549, 4179, 6253, 7363, 7761, 10101, 18109, 18759, 22089, 33631, 43771, 51541, 54327, 95719, 100893, 131313, 154623, 235417, 287157, 670033, 706251, 1244347, 2010099, 3733041, 8710429, 26131287]

約数ペア:

[(1, 26131287), (3, 8710429), (7, 3733041), (13, 2010099), (21, 1244347), (37, 706251), (39, 670033), (91, 287157), (111, 235417), (169, 154623), (199, 131313), (259, 100893), (273, 95719), (481, 54327), (507, 51541), (597, 43771), (777, 33631), (1183, 22089), (1393, 18759), (1443, 18109), (2587, 10101), (3367, 7761), (3549, 7363), (4179, 6253)]