31889011

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:415

約数の個数: 32

約数和(自身を含む): 42577920

約数和(自身を除く): 10688909

約数列:

[1, 7, 11, 19, 71, 77, 133, 209, 307, 497, 781, 1349, 1463, 2149, 3377, 5467, 5833, 9443, 14839, 21797, 23639, 40831, 64163, 103873, 152579, 239767, 414143, 449141, 1678369, 2899001, 4555573, 31889011]

約数ペア:

[(1, 31889011), (7, 4555573), (11, 2899001), (19, 1678369), (71, 449141), (77, 414143), (133, 239767), (209, 152579), (307, 103873), (497, 64163), (781, 40831), (1349, 23639), (1463, 21797), (2149, 14839), (3377, 9443), (5467, 5833)]