8621459

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:191

約数の個数: 32

約数和(自身を含む): 11612160

約数和(自身を除く): 2990701

約数列:

[1, 7, 11, 19, 71, 77, 83, 133, 209, 497, 581, 781, 913, 1349, 1463, 1577, 5467, 5893, 6391, 9443, 11039, 14839, 17347, 41251, 64823, 103873, 111967, 121429, 453761, 783769, 1231637, 8621459]

約数ペア:

[(1, 8621459), (7, 1231637), (11, 783769), (19, 453761), (71, 121429), (77, 111967), (83, 103873), (133, 64823), (209, 41251), (497, 17347), (581, 14839), (781, 11039), (913, 9443), (1349, 6391), (1463, 5893), (1577, 5467)]