21613581

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1193}}^1$

素因数の和:1274

約数の個数: 32

約数和(自身を含む): 35533440

約数和(自身を除く): 13919859

約数列:

[1, 3, 9, 11, 27, 33, 61, 99, 183, 297, 549, 671, 1193, 1647, 2013, 3579, 6039, 10737, 13123, 18117, 32211, 39369, 72773, 118107, 218319, 354321, 654957, 800503, 1964871, 2401509, 7204527, 21613581]

約数ペア:

[(1, 21613581), (3, 7204527), (9, 2401509), (11, 1964871), (27, 800503), (33, 654957), (61, 354321), (99, 218319), (183, 118107), (297, 72773), (549, 39369), (671, 32211), (1193, 18117), (1647, 13123), (2013, 10737), (3579, 6039)]