21283059

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1301}}^1$

素因数の和:1371

約数の個数: 32

約数和(自身を含む): 34997760

約数和(自身を除く): 13714701

約数列:

[1, 3, 7, 19, 21, 41, 57, 123, 133, 287, 399, 779, 861, 1301, 2337, 3903, 5453, 9107, 16359, 24719, 27321, 53341, 74157, 160023, 173033, 373387, 519099, 1013479, 1120161, 3040437, 7094353, 21283059]

約数ペア:

[(1, 21283059), (3, 7094353), (7, 3040437), (19, 1120161), (21, 1013479), (41, 519099), (57, 373387), (123, 173033), (133, 160023), (287, 74157), (399, 53341), (779, 27321), (861, 24719), (1301, 16359), (2337, 9107), (3903, 5453)]