20491504

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{673}}^1$

素因数の和:865

約数の個数: 40

約数和(自身を含む): 43626672

約数和(自身を除く): 23135168

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 173, 176, 346, 673, 692, 1346, 1384, 1903, 2692, 2768, 3806, 5384, 7403, 7612, 10768, 14806, 15224, 29612, 30448, 59224, 116429, 118448, 232858, 465716, 931432, 1280719, 1862864, 2561438, 5122876, 10245752, 20491504]

約数ペア:

[(1, 20491504), (2, 10245752), (4, 5122876), (8, 2561438), (11, 1862864), (16, 1280719), (22, 931432), (44, 465716), (88, 232858), (173, 118448), (176, 116429), (346, 59224), (673, 30448), (692, 29612), (1346, 15224), (1384, 14806), (1903, 10768), (2692, 7612), (2768, 7403), (3806, 5384)]