863640873

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{343943}}^1$

素因数の和:343986

約数の個数: 20

約数和(自身を含む): 1331751168

約数和(自身を除く): 468110295

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 343943, 1031829, 3095487, 9286461, 10662233, 27859383, 31986699, 95960097, 287880291, 863640873]

約数ペア:

[(1, 863640873), (3, 287880291), (9, 95960097), (27, 31986699), (31, 27859383), (81, 10662233), (93, 9286461), (279, 3095487), (837, 1031829), (2511, 343943)]