19690479

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{293}}^1$

素因数の和:452

約数の個数: 32

約数和(自身を含む): 31046400

約数和(自身を除く): 11355921

約数列:

[1, 3, 9, 19, 27, 57, 131, 171, 293, 393, 513, 879, 1179, 2489, 2637, 3537, 5567, 7467, 7911, 16701, 22401, 38383, 50103, 67203, 115149, 150309, 345447, 729277, 1036341, 2187831, 6563493, 19690479]

約数ペア:

[(1, 19690479), (3, 6563493), (9, 2187831), (19, 1036341), (27, 729277), (57, 345447), (131, 150309), (171, 115149), (293, 67203), (393, 50103), (513, 38383), (879, 22401), (1179, 16701), (2489, 7911), (2637, 7467), (3537, 5567)]