67181387

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{521}}^1$

素因数の和:663

約数の個数: 24

約数和(自身を含む): 84062880

約数和(自身を除く): 16881493

約数列:

[1, 7, 13, 91, 109, 169, 521, 763, 1183, 1417, 3647, 6773, 9919, 18421, 47411, 56789, 88049, 128947, 397523, 616343, 738257, 5167799, 9597341, 67181387]

約数ペア:

[(1, 67181387), (7, 9597341), (13, 5167799), (91, 738257), (109, 616343), (169, 397523), (521, 128947), (763, 88049), (1183, 56789), (1417, 47411), (3647, 18421), (6773, 9919)]