20404803

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{83}}^1\times {\mathrm{227}}^1$

素因数の和:351

約数の個数: 24

約数和(自身を含む): 29187648

約数和(自身を除く): 8782845

約数列:

[1, 3, 19, 57, 83, 227, 249, 361, 681, 1083, 1577, 4313, 4731, 12939, 18841, 29963, 56523, 81947, 89889, 245841, 357979, 1073937, 6801601, 20404803]

約数ペア:

[(1, 20404803), (3, 6801601), (19, 1073937), (57, 357979), (83, 245841), (227, 89889), (249, 81947), (361, 56523), (681, 29963), (1083, 18841), (1577, 12939), (4313, 4731)]