18978777

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2707}}^1$

素因数の和:2773

約数の個数: 24

約数和(自身を含む): 29571360

約数和(自身を除く): 10592583

約数列:

[1, 3, 9, 19, 41, 57, 123, 171, 369, 779, 2337, 2707, 7011, 8121, 24363, 51433, 110987, 154299, 332961, 462897, 998883, 2108753, 6326259, 18978777]

約数ペア:

[(1, 18978777), (3, 6326259), (9, 2108753), (19, 998883), (41, 462897), (57, 332961), (123, 154299), (171, 110987), (369, 51433), (779, 24363), (2337, 8121), (2707, 7011)]