21286023

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1997}}^1$

素因数の和:2047

約数の個数: 32

約数和(自身を含む): 34525440

約数和(自身を除く): 13239417

約数列:

[1, 3, 11, 17, 19, 33, 51, 57, 187, 209, 323, 561, 627, 969, 1997, 3553, 5991, 10659, 21967, 33949, 37943, 65901, 101847, 113829, 373439, 417373, 645031, 1120317, 1252119, 1935093, 7095341, 21286023]

約数ペア:

[(1, 21286023), (3, 7095341), (11, 1935093), (17, 1252119), (19, 1120317), (33, 645031), (51, 417373), (57, 373439), (187, 113829), (209, 101847), (323, 65901), (561, 37943), (627, 33949), (969, 21967), (1997, 10659), (3553, 5991)]