18328072

素因数分解:

$2^3\times 7^1\times {\mathrm{509}}^1\times {\mathrm{643}}^1$

素因数の和:1165

約数の個数: 32

約数和(自身を含む): 39412800

約数和(自身を除く): 21084728

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 509, 643, 1018, 1286, 2036, 2572, 3563, 4072, 4501, 5144, 7126, 9002, 14252, 18004, 28504, 36008, 327287, 654574, 1309148, 2291009, 2618296, 4582018, 9164036, 18328072]

約数ペア:

[(1, 18328072), (2, 9164036), (4, 4582018), (7, 2618296), (8, 2291009), (14, 1309148), (28, 654574), (56, 327287), (509, 36008), (643, 28504), (1018, 18004), (1286, 14252), (2036, 9002), (2572, 7126), (3563, 5144), (4072, 4501)]