20767689

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{2447}}^1$

素因数の和:2517

約数の個数: 24

約数和(自身を含む): 32078592

約数和(自身を除く): 11310903

約数列:

[1, 3, 9, 23, 41, 69, 123, 207, 369, 943, 2447, 2829, 7341, 8487, 22023, 56281, 100327, 168843, 300981, 506529, 902943, 2307521, 6922563, 20767689]

約数ペア:

[(1, 20767689), (3, 6922563), (9, 2307521), (23, 902943), (41, 506529), (69, 300981), (123, 168843), (207, 100327), (369, 56281), (943, 22023), (2447, 8487), (2829, 7341)]