20249955

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{3719}}^1$

素因数の和:3752

約数の個数: 36

約数和(自身を含む): 38591280

約数和(自身を除く): 18341325

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 121, 165, 363, 495, 605, 1089, 1815, 3719, 5445, 11157, 18595, 33471, 40909, 55785, 122727, 167355, 204545, 368181, 449999, 613635, 1349997, 1840905, 2249995, 4049991, 6749985, 20249955]

約数ペア:

[(1, 20249955), (3, 6749985), (5, 4049991), (9, 2249995), (11, 1840905), (15, 1349997), (33, 613635), (45, 449999), (55, 368181), (99, 204545), (121, 167355), (165, 122727), (363, 55785), (495, 40909), (605, 33471), (1089, 18595), (1815, 11157), (3719, 5445)]