394009

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1$

素因数の和:85

約数の個数: 24

約数和(自身を含む): 541728

約数和(自身を除く): 147719

約数列:

[1, 7, 11, 17, 43, 49, 77, 119, 187, 301, 473, 539, 731, 833, 1309, 2107, 3311, 5117, 8041, 9163, 23177, 35819, 56287, 394009]

約数ペア:

[(1, 394009), (7, 56287), (11, 35819), (17, 23177), (43, 9163), (49, 8041), (77, 5117), (119, 3311), (187, 2107), (301, 1309), (473, 833), (539, 731)]