20855469

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1\times {\mathrm{547}}^1$

素因数の和:800

約数の個数: 16

約数和(自身を含む): 28408320

約数和(自身を除く): 7552851

約数列:

[1, 3, 71, 179, 213, 537, 547, 1641, 12709, 38127, 38837, 97913, 116511, 293739, 6951823, 20855469]

約数ペア:

[(1, 20855469), (3, 6951823), (71, 293739), (179, 116511), (213, 97913), (537, 38837), (547, 38127), (1641, 12709)]