21291116

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{69127}}^1$

素因数の和:69149

約数の個数: 24

約数和(自身を含む): 46454016

約数和(自身を除く): 25162900

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 69127, 138254, 276508, 483889, 760397, 967778, 1520794, 1935556, 3041588, 5322779, 10645558, 21291116]

約数ペア:

[(1, 21291116), (2, 10645558), (4, 5322779), (7, 3041588), (11, 1935556), (14, 1520794), (22, 967778), (28, 760397), (44, 483889), (77, 276508), (154, 138254), (308, 69127)]