39968887

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1$

素因数の和:247

約数の個数: 32

約数和(自身を含む): 50637312

約数和(自身を除く): 10668425

約数列:

[1, 7, 17, 43, 73, 107, 119, 301, 511, 731, 749, 1241, 1819, 3139, 4601, 5117, 7811, 8687, 12733, 21973, 32207, 53363, 54677, 78217, 132787, 335873, 373541, 547519, 929509, 2351111, 5709841, 39968887]

約数ペア:

[(1, 39968887), (7, 5709841), (17, 2351111), (43, 929509), (73, 547519), (107, 373541), (119, 335873), (301, 132787), (511, 78217), (731, 54677), (749, 53363), (1241, 32207), (1819, 21973), (3139, 12733), (4601, 8687), (5117, 7811)]