19781393

素因数分解:

${\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:328

約数の個数: 16

約数和(自身を含む): 21288960

約数和(自身を除く): 1507567

約数列:

[1, 29, 41, 127, 131, 1189, 3683, 3799, 5207, 5371, 16637, 151003, 155759, 482473, 682117, 19781393]

約数ペア:

[(1, 19781393), (29, 682117), (41, 482473), (127, 155759), (131, 151003), (1189, 16637), (3683, 5371), (3799, 5207)]