9989648

素因数分解:

$2^4\times {\mathrm{643}}^1\times {\mathrm{971}}^1$

素因数の和:1622

約数の個数: 20

約数和(自身を含む): 19405008

約数和(自身を除く): 9415360

約数列:

[1, 2, 4, 8, 16, 643, 971, 1286, 1942, 2572, 3884, 5144, 7768, 10288, 15536, 624353, 1248706, 2497412, 4994824, 9989648]

約数ペア:

[(1, 9989648), (2, 4994824), (4, 2497412), (8, 1248706), (16, 624353), (643, 15536), (971, 10288), (1286, 7768), (1942, 5144), (2572, 3884)]