16988991

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{1811}}^1$

素因数の和:1926

約数の個数: 16

約数和(自身を含む): 23483520

約数和(自身を除く): 6494529

約数列:

[1, 3, 53, 59, 159, 177, 1811, 3127, 5433, 9381, 95983, 106849, 287949, 320547, 5662997, 16988991]

約数ペア:

[(1, 16988991), (3, 5662997), (53, 320547), (59, 287949), (159, 106849), (177, 95983), (1811, 9381), (3127, 5433)]