20161655991

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{117904421}}^1$

素因数の和:117904446

約数の個数: 12

約数和(自身を含む): 30655149720

約数和(自身を除く): 10493493729

約数列:

[1, 3, 9, 19, 57, 171, 117904421, 353713263, 1061139789, 2240183999, 6720551997, 20161655991]

約数ペア:

[(1, 20161655991), (3, 6720551997), (9, 2240183999), (19, 1061139789), (57, 353713263), (171, 117904421)]