18904689

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{271}}^1\times {\mathrm{337}}^1$

素因数の和:637

約数の個数: 24

約数和(自身を含む): 28684032

約数和(自身を除く): 9779343

約数列:

[1, 3, 9, 23, 69, 207, 271, 337, 813, 1011, 2439, 3033, 6233, 7751, 18699, 23253, 56097, 69759, 91327, 273981, 821943, 2100521, 6301563, 18904689]

約数ペア:

[(1, 18904689), (3, 6301563), (9, 2100521), (23, 821943), (69, 273981), (207, 91327), (271, 69759), (337, 56097), (813, 23253), (1011, 18699), (2439, 7751), (3033, 6233)]