19759797

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:218

約数の個数: 36

約数和(自身を含む): 31034016

約数和(自身を除く): 11274219

約数列:

[1, 3, 9, 17, 51, 71, 107, 153, 213, 289, 321, 639, 867, 963, 1207, 1819, 2601, 3621, 5457, 7597, 10863, 16371, 20519, 22791, 30923, 61557, 68373, 92769, 129149, 184671, 278307, 387447, 1162341, 2195533, 6586599, 19759797]

約数ペア:

[(1, 19759797), (3, 6586599), (9, 2195533), (17, 1162341), (51, 387447), (71, 278307), (107, 184671), (153, 129149), (213, 92769), (289, 68373), (321, 61557), (639, 30923), (867, 22791), (963, 20519), (1207, 16371), (1819, 10863), (2601, 7597), (3621, 5457)]