21786836

素因数分解:

$2^2\times {\mathrm{83}}^1\times {\mathrm{137}}^1\times {\mathrm{479}}^1$

素因数の和:703

約数の個数: 24

約数和(自身を含む): 38949120

約数和(自身を除く): 17162284

約数列:

[1, 2, 4, 83, 137, 166, 274, 332, 479, 548, 958, 1916, 11371, 22742, 39757, 45484, 65623, 79514, 131246, 159028, 262492, 5446709, 10893418, 21786836]

約数ペア:

[(1, 21786836), (2, 10893418), (4, 5446709), (83, 262492), (137, 159028), (166, 131246), (274, 79514), (332, 65623), (479, 45484), (548, 39757), (958, 22742), (1916, 11371)]