21331453

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:297

約数の個数: 24

約数和(自身を含む): 25740288

約数和(自身を除く): 4408835

約数列:

[1, 11, 13, 71, 121, 143, 191, 781, 923, 1573, 2101, 2483, 8591, 10153, 13561, 23111, 27313, 111683, 149171, 176293, 300443, 1640881, 1939223, 21331453]

約数ペア:

[(1, 21331453), (11, 1939223), (13, 1640881), (71, 300443), (121, 176293), (143, 149171), (191, 111683), (781, 27313), (923, 23111), (1573, 13561), (2101, 10153), (2483, 8591)]