20530191

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{2459}}^1$

素因数の和:2507

約数の個数: 24

約数和(自身を含む): 31409280

約数和(自身を除く): 10879089

約数列:

[1, 3, 11, 23, 33, 69, 121, 253, 363, 759, 2459, 2783, 7377, 8349, 27049, 56557, 81147, 169671, 297539, 622127, 892617, 1866381, 6843397, 20530191]

約数ペア:

[(1, 20530191), (3, 6843397), (11, 1866381), (23, 892617), (33, 622127), (69, 297539), (121, 169671), (253, 81147), (363, 56557), (759, 27049), (2459, 8349), (2783, 7377)]