287880291

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{343943}}^1$

素因数の和:343983

約数の個数: 16

約数和(自身を含む): 440248320

約数和(自身を除く): 152368029

約数列:

[1, 3, 9, 27, 31, 93, 279, 837, 343943, 1031829, 3095487, 9286461, 10662233, 31986699, 95960097, 287880291]

約数ペア:

[(1, 287880291), (3, 95960097), (9, 31986699), (27, 10662233), (31, 9286461), (93, 3095487), (279, 1031829), (837, 343943)]