1999840131

素因数分解:

$3^3\times {\mathrm{509}}^1\times {\mathrm{145517}}^1$

素因数の和:146035

約数の個数: 16

約数和(自身を含む): 2968567200

約数和(自身を除く): 968727069

約数列:

[1, 3, 9, 27, 509, 1527, 4581, 13743, 145517, 436551, 1309653, 3928959, 74068153, 222204459, 666613377, 1999840131]

約数ペア:

[(1, 1999840131), (3, 666613377), (9, 222204459), (27, 74068153), (509, 3928959), (1527, 1309653), (4581, 436551), (13743, 145517)]