28180629

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{18311}}^1$

素因数の和:18342

約数の個数: 20

約数和(自身を含む): 44315040

約数和(自身を除く): 16134411

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 18311, 54933, 164799, 347909, 494397, 1043727, 1483191, 3131181, 9393543, 28180629]

約数ペア:

[(1, 28180629), (3, 9393543), (9, 3131181), (19, 1483191), (27, 1043727), (57, 494397), (81, 347909), (171, 164799), (513, 54933), (1539, 18311)]