18919629

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{331}}^1$

素因数の和:442

約数の個数: 32

約数和(自身を含む): 29481600

約数和(自身を除く): 10561971

約数列:

[1, 3, 9, 27, 29, 73, 87, 219, 261, 331, 657, 783, 993, 1971, 2117, 2979, 6351, 8937, 9599, 19053, 24163, 28797, 57159, 72489, 86391, 217467, 259173, 652401, 700727, 2102181, 6306543, 18919629]

約数ペア:

[(1, 18919629), (3, 6306543), (9, 2102181), (27, 700727), (29, 652401), (73, 259173), (87, 217467), (219, 86391), (261, 72489), (331, 57159), (657, 28797), (783, 24163), (993, 19053), (1971, 9599), (2117, 8937), (2979, 6351)]