21072016

素因数分解:

$2^4\times 7^1\times {\mathrm{188143}}^1$

素因数の和:188158

約数の個数: 20

約数和(自身を含む): 46659712

約数和(自身を除く): 25587696

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 188143, 376286, 752572, 1317001, 1505144, 2634002, 3010288, 5268004, 10536008, 21072016]

約数ペア:

[(1, 21072016), (2, 10536008), (4, 5268004), (7, 3010288), (8, 2634002), (14, 1505144), (16, 1317001), (28, 752572), (56, 376286), (112, 188143)]