21400916

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{2903}}^1$

素因数の和:3023

約数の個数: 24

約数和(自身を含む): 39842880

約数和(自身を除く): 18441964

約数列:

[1, 2, 4, 19, 38, 76, 97, 194, 388, 1843, 2903, 3686, 5806, 7372, 11612, 55157, 110314, 220628, 281591, 563182, 1126364, 5350229, 10700458, 21400916]

約数ペア:

[(1, 21400916), (2, 10700458), (4, 5350229), (19, 1126364), (38, 563182), (76, 281591), (97, 220628), (194, 110314), (388, 55157), (1843, 11612), (2903, 7372), (3686, 5806)]