209250513

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{180233}}^1$

素因数の和:180285

約数の個数: 16

約数和(自身を含む): 317211840

約数和(自身を除く): 107961327

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 180233, 540699, 1622097, 4866291, 7750019, 23250057, 69750171, 209250513]

約数ペア:

[(1, 209250513), (3, 69750171), (9, 23250057), (27, 7750019), (43, 4866291), (129, 1622097), (387, 540699), (1161, 180233)]