19665976

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{1123}}^1$

素因数の和:1339

約数の個数: 32

約数和(自身を含む): 40464000

約数和(自身を除く): 20798024

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 199, 398, 796, 1123, 1592, 2189, 2246, 4378, 4492, 8756, 8984, 12353, 17512, 24706, 49412, 98824, 223477, 446954, 893908, 1787816, 2458247, 4916494, 9832988, 19665976]

約数ペア:

[(1, 19665976), (2, 9832988), (4, 4916494), (8, 2458247), (11, 1787816), (22, 893908), (44, 446954), (88, 223477), (199, 98824), (398, 49412), (796, 24706), (1123, 17512), (1592, 12353), (2189, 8984), (2246, 8756), (4378, 4492)]