19688816

素因数分解:

$2^4\times 7^1\times {\mathrm{367}}^1\times {\mathrm{479}}^1$

素因数の和:861

約数の個数: 40

約数和(自身を含む): 43806720

約数和(自身を除く): 24117904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 367, 479, 734, 958, 1468, 1916, 2569, 2936, 3353, 3832, 5138, 5872, 6706, 7664, 10276, 13412, 20552, 26824, 41104, 53648, 175793, 351586, 703172, 1230551, 1406344, 2461102, 2812688, 4922204, 9844408, 19688816]

約数ペア:

[(1, 19688816), (2, 9844408), (4, 4922204), (7, 2812688), (8, 2461102), (14, 1406344), (16, 1230551), (28, 703172), (56, 351586), (112, 175793), (367, 53648), (479, 41104), (734, 26824), (958, 20552), (1468, 13412), (1916, 10276), (2569, 7664), (2936, 6706), (3353, 5872), (3832, 5138)]