9780218

素因数分解:

$2^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{1979}}^1$

素因数の和:2341

約数の個数: 16

約数和(自身を含む): 16822080

約数和(自身を除く): 7041862

約数列:

[1, 2, 7, 14, 353, 706, 1979, 2471, 3958, 4942, 13853, 27706, 698587, 1397174, 4890109, 9780218]

約数ペア:

[(1, 9780218), (2, 4890109), (7, 1397174), (14, 698587), (353, 27706), (706, 13853), (1979, 4942), (2471, 3958)]