255719043

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{78707}}^1$

素因数の和:78751

約数の個数: 18

約数和(自身を含む): 389840724

約数和(自身を除く): 134121681

約数列:

[1, 3, 9, 19, 57, 171, 361, 1083, 3249, 78707, 236121, 708363, 1495433, 4486299, 13458897, 28413227, 85239681, 255719043]

約数ペア:

[(1, 255719043), (3, 85239681), (9, 28413227), (19, 13458897), (57, 4486299), (171, 1495433), (361, 708363), (1083, 236121), (3249, 78707)]