208692009

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{7159}}^1$

素因数の和:7285

約数の個数: 24

約数和(自身を含む): 312748800

約数和(自身を除く): 104056791

約数列:

[1, 3, 9, 41, 79, 123, 237, 369, 711, 3239, 7159, 9717, 21477, 29151, 64431, 293519, 565561, 880557, 1696683, 2641671, 5090049, 23188001, 69564003, 208692009]

約数ペア:

[(1, 208692009), (3, 69564003), (9, 23188001), (41, 5090049), (79, 2641671), (123, 1696683), (237, 880557), (369, 565561), (711, 293519), (3239, 64431), (7159, 29151), (9717, 21477)]