20394999

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2909}}^1$

素因数の和:2975

約数の個数: 24

約数和(自身を含む): 31777200

約数和(自身を除く): 11382201

約数列:

[1, 3, 9, 19, 41, 57, 123, 171, 369, 779, 2337, 2909, 7011, 8727, 26181, 55271, 119269, 165813, 357807, 497439, 1073421, 2266111, 6798333, 20394999]

約数ペア:

[(1, 20394999), (3, 6798333), (9, 2266111), (19, 1073421), (41, 497439), (57, 357807), (123, 165813), (171, 119269), (369, 55271), (779, 26181), (2337, 8727), (2909, 7011)]