18307431

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{281}}^1$

素因数の和:436

約数の個数: 32

約数和(自身を含む): 28876800

約数和(自身を除く): 10569369

約数列:

[1, 3, 9, 19, 27, 57, 127, 171, 281, 381, 513, 843, 1143, 2413, 2529, 3429, 5339, 7239, 7587, 16017, 21717, 35687, 48051, 65151, 107061, 144153, 321183, 678053, 963549, 2034159, 6102477, 18307431]

約数ペア:

[(1, 18307431), (3, 6102477), (9, 2034159), (19, 963549), (27, 678053), (57, 321183), (127, 144153), (171, 107061), (281, 65151), (381, 48051), (513, 35687), (843, 21717), (1143, 16017), (2413, 7587), (2529, 7239), (3429, 5339)]