18937744

素因数分解:

$2^4\times 7^1\times {\mathrm{353}}^1\times {\mathrm{479}}^1$

素因数の和:847

約数の個数: 40

約数和(自身を含む): 42140160

約数和(自身を除く): 23202416

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 353, 479, 706, 958, 1412, 1916, 2471, 2824, 3353, 3832, 4942, 5648, 6706, 7664, 9884, 13412, 19768, 26824, 39536, 53648, 169087, 338174, 676348, 1183609, 1352696, 2367218, 2705392, 4734436, 9468872, 18937744]

約数ペア:

[(1, 18937744), (2, 9468872), (4, 4734436), (7, 2705392), (8, 2367218), (14, 1352696), (16, 1183609), (28, 676348), (56, 338174), (112, 169087), (353, 53648), (479, 39536), (706, 26824), (958, 19768), (1412, 13412), (1916, 9884), (2471, 7664), (2824, 6706), (3353, 5648), (3832, 4942)]