1621780029

素因数分解:

$3^3\times {\mathrm{443}}^1\times {\mathrm{135589}}^1$

素因数の和:136041

約数の個数: 16

約数和(自身を含む): 2408078400

約数和(自身を除く): 786298371

約数列:

[1, 3, 9, 27, 443, 1329, 3987, 11961, 135589, 406767, 1220301, 3660903, 60065927, 180197781, 540593343, 1621780029]

約数ペア:

[(1, 1621780029), (3, 540593343), (9, 180197781), (27, 60065927), (443, 3660903), (1329, 1220301), (3987, 406767), (11961, 135589)]