21496288

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{353}}^1$

素因数の和:547

約数の個数: 48

約数和(自身を含む): 46566576

約数和(自身を除く): 25070288

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 173, 176, 346, 352, 353, 692, 706, 1384, 1412, 1903, 2768, 2824, 3806, 3883, 5536, 5648, 7612, 7766, 11296, 15224, 15532, 30448, 31064, 60896, 61069, 62128, 122138, 124256, 244276, 488552, 671759, 977104, 1343518, 1954208, 2687036, 5374072, 10748144, 21496288]

約数ペア:

[(1, 21496288), (2, 10748144), (4, 5374072), (8, 2687036), (11, 1954208), (16, 1343518), (22, 977104), (32, 671759), (44, 488552), (88, 244276), (173, 124256), (176, 122138), (346, 62128), (352, 61069), (353, 60896), (692, 31064), (706, 30448), (1384, 15532), (1412, 15224), (1903, 11296), (2768, 7766), (2824, 7612), (3806, 5648), (3883, 5536)]