20866384

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{16937}}^1$

素因数の和:16963

約数の個数: 40

約数和(自身を含む): 50407488

約数和(自身を除く): 29541104

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 308, 616, 1232, 16937, 33874, 67748, 118559, 135496, 186307, 237118, 270992, 372614, 474236, 745228, 948472, 1304149, 1490456, 1896944, 2608298, 2980912, 5216596, 10433192, 20866384]

約数ペア:

[(1, 20866384), (2, 10433192), (4, 5216596), (7, 2980912), (8, 2608298), (11, 1896944), (14, 1490456), (16, 1304149), (22, 948472), (28, 745228), (44, 474236), (56, 372614), (77, 270992), (88, 237118), (112, 186307), (154, 135496), (176, 118559), (308, 67748), (616, 33874), (1232, 16937)]