21181412

素因数分解:

$2^2\times 7^1\times {\mathrm{353}}^1\times {\mathrm{2143}}^1$

素因数の和:2507

約数の個数: 24

約数和(自身を含む): 42502656

約数和(自身を除く): 21321244

約数列:

[1, 2, 4, 7, 14, 28, 353, 706, 1412, 2143, 2471, 4286, 4942, 8572, 9884, 15001, 30002, 60004, 756479, 1512958, 3025916, 5295353, 10590706, 21181412]

約数ペア:

[(1, 21181412), (2, 10590706), (4, 5295353), (7, 3025916), (14, 1512958), (28, 756479), (353, 60004), (706, 30002), (1412, 15001), (2143, 9884), (2471, 8572), (4286, 4942)]