209379879

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{653}}^1\times {\mathrm{1549}}^1$

素因数の和:2231

約数の個数: 24

約数和(自身を含む): 316274400

約数和(自身を除く): 106894521

約数列:

[1, 3, 9, 23, 69, 207, 653, 1549, 1959, 4647, 5877, 13941, 15019, 35627, 45057, 106881, 135171, 320643, 1011497, 3034491, 9103473, 23264431, 69793293, 209379879]

約数ペア:

[(1, 209379879), (3, 69793293), (9, 23264431), (23, 9103473), (69, 3034491), (207, 1011497), (653, 320643), (1549, 135171), (1959, 106881), (4647, 45057), (5877, 35627), (13941, 15019)]