1388397724

素因数分解:

$2^2\times 7^1\times {\mathrm{211}}^1\times {\mathrm{235003}}^1$

素因数の和:235225

約数の個数: 24

約数和(自身を含む): 2789967488

約数和(自身を除く): 1401569764

約数列:

[1, 2, 4, 7, 14, 28, 211, 422, 844, 1477, 2954, 5908, 235003, 470006, 940012, 1645021, 3290042, 6580084, 49585633, 99171266, 198342532, 347099431, 694198862, 1388397724]

約数ペア:

[(1, 1388397724), (2, 694198862), (4, 347099431), (7, 198342532), (14, 99171266), (28, 49585633), (211, 6580084), (422, 3290042), (844, 1645021), (1477, 940012), (2954, 470006), (5908, 235003)]