19987077

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{9929}}^1$

素因数の和:10004

約数の個数: 16

約数和(自身を含む): 29551680

約数和(自身を除く): 9564603

約数列:

[1, 3, 11, 33, 61, 183, 671, 2013, 9929, 29787, 109219, 327657, 605669, 1817007, 6662359, 19987077]

約数ペア:

[(1, 19987077), (3, 6662359), (11, 1817007), (33, 605669), (61, 327657), (183, 109219), (671, 29787), (2013, 9929)]