18946638

素因数分解:

$2^1\times 3^2\times {\mathrm{643}}^1\times {\mathrm{1637}}^1$

素因数の和:2288

約数の個数: 24

約数和(自身を含む): 41140008

約数和(自身を除く): 22193370

約数列:

[1, 2, 3, 6, 9, 18, 643, 1286, 1637, 1929, 3274, 3858, 4911, 5787, 9822, 11574, 14733, 29466, 1052591, 2105182, 3157773, 6315546, 9473319, 18946638]

約数ペア:

[(1, 18946638), (2, 9473319), (3, 6315546), (6, 3157773), (9, 2105182), (18, 1052591), (643, 29466), (1286, 14733), (1637, 11574), (1929, 9822), (3274, 5787), (3858, 4911)]