28007577

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{293}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 47087040

約数和(自身を除く): 19079463

約数列:

[1, 3, 9, 13, 19, 39, 43, 57, 117, 129, 171, 247, 293, 387, 559, 741, 817, 879, 1677, 2223, 2451, 2637, 3809, 5031, 5567, 7353, 10621, 11427, 12599, 16701, 31863, 34281, 37797, 50103, 72371, 95589, 113391, 163787, 217113, 239381, 491361, 651339, 718143, 1474083, 2154429, 3111953, 9335859, 28007577]

約数ペア:

[(1, 28007577), (3, 9335859), (9, 3111953), (13, 2154429), (19, 1474083), (39, 718143), (43, 651339), (57, 491361), (117, 239381), (129, 217113), (171, 163787), (247, 113391), (293, 95589), (387, 72371), (559, 50103), (741, 37797), (817, 34281), (879, 31863), (1677, 16701), (2223, 12599), (2451, 11427), (2637, 10621), (3809, 7353), (5031, 5567)]