20047489

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:301

約数の個数: 32

約数和(自身を含む): 26818560

約数和(自身を除く): 6771071

約数列:

[1, 7, 11, 19, 71, 77, 133, 193, 209, 497, 781, 1349, 1351, 1463, 2123, 3667, 5467, 9443, 13703, 14839, 14861, 25669, 40337, 95921, 103873, 150733, 260357, 282359, 1055131, 1822499, 2863927, 20047489]

約数ペア:

[(1, 20047489), (7, 2863927), (11, 1822499), (19, 1055131), (71, 282359), (77, 260357), (133, 150733), (193, 103873), (209, 95921), (497, 40337), (781, 25669), (1349, 14861), (1351, 14839), (1463, 13703), (2123, 9443), (3667, 5467)]