21012112

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{277}}^1\times {\mathrm{431}}^1$

素因数の和:727

約数の個数: 40

約数和(自身を含む): 44675712

約数和(自身を除く): 23663600

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 277, 431, 554, 862, 1108, 1724, 2216, 3047, 3448, 4432, 4741, 6094, 6896, 9482, 12188, 18964, 24376, 37928, 48752, 75856, 119387, 238774, 477548, 955096, 1313257, 1910192, 2626514, 5253028, 10506056, 21012112]

約数ペア:

[(1, 21012112), (2, 10506056), (4, 5253028), (8, 2626514), (11, 1910192), (16, 1313257), (22, 955096), (44, 477548), (88, 238774), (176, 119387), (277, 75856), (431, 48752), (554, 37928), (862, 24376), (1108, 18964), (1724, 12188), (2216, 9482), (3047, 6896), (3448, 6094), (4432, 4741)]