12811964

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{103}}^1\times {\mathrm{257}}^1$

素因数の和:386

約数の個数: 36

約数和(自身を含む): 24980592

約数和(自身を除く): 12168628

約数列:

[1, 2, 4, 11, 22, 44, 103, 121, 206, 242, 257, 412, 484, 514, 1028, 1133, 2266, 2827, 4532, 5654, 11308, 12463, 24926, 26471, 31097, 49852, 52942, 62194, 105884, 124388, 291181, 582362, 1164724, 3202991, 6405982, 12811964]

約数ペア:

[(1, 12811964), (2, 6405982), (4, 3202991), (11, 1164724), (22, 582362), (44, 291181), (103, 124388), (121, 105884), (206, 62194), (242, 52942), (257, 49852), (412, 31097), (484, 26471), (514, 24926), (1028, 12463), (1133, 11308), (2266, 5654), (2827, 4532)]