21629188

素因数分解:

$2^2\times 7^2\times {\mathrm{211}}^1\times {\mathrm{523}}^1$

素因数の和:752

約数の個数: 36

約数和(自身を含む): 44324112

約数和(自身を除く): 22694924

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 211, 422, 523, 844, 1046, 1477, 2092, 2954, 3661, 5908, 7322, 10339, 14644, 20678, 25627, 41356, 51254, 102508, 110353, 220706, 441412, 772471, 1544942, 3089884, 5407297, 10814594, 21629188]

約数ペア:

[(1, 21629188), (2, 10814594), (4, 5407297), (7, 3089884), (14, 1544942), (28, 772471), (49, 441412), (98, 220706), (196, 110353), (211, 102508), (422, 51254), (523, 41356), (844, 25627), (1046, 20678), (1477, 14644), (2092, 10339), (2954, 7322), (3661, 5908)]