209797

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:108

約数の個数: 16

約数和(自身を含む): 266112

約数和(自身を除く): 56315

約数列:

[1, 7, 17, 41, 43, 119, 287, 301, 697, 731, 1763, 4879, 5117, 12341, 29971, 209797]

約数ペア:

[(1, 209797), (7, 29971), (17, 12341), (41, 5117), (43, 4879), (119, 1763), (287, 731), (301, 697)]