20908953

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{1033}}^1$

素因数の和:1225

約数の個数: 24

約数和(自身を含む): 32744712

約数和(自身を除く): 11835759

約数列:

[1, 3, 9, 13, 39, 117, 173, 519, 1033, 1557, 2249, 3099, 6747, 9297, 13429, 20241, 40287, 120861, 178709, 536127, 1608381, 2323217, 6969651, 20908953]

約数ペア:

[(1, 20908953), (3, 6969651), (9, 2323217), (13, 1608381), (39, 536127), (117, 178709), (173, 120861), (519, 40287), (1033, 20241), (1557, 13429), (2249, 9297), (3099, 6747)]