20653803

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{643}}^1$

素因数の和:775

約数の個数: 24

約数和(自身を含む): 30942912

約数和(自身を除く): 10289109

約数列:

[1, 3, 9, 43, 83, 129, 249, 387, 643, 747, 1929, 3569, 5787, 10707, 27649, 32121, 53369, 82947, 160107, 248841, 480321, 2294867, 6884601, 20653803]

約数ペア:

[(1, 20653803), (3, 6884601), (9, 2294867), (43, 480321), (83, 248841), (129, 160107), (249, 82947), (387, 53369), (643, 32121), (747, 27649), (1929, 10707), (3569, 5787)]