21088007421

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{541}}^1\times {\mathrm{76883}}^1$

素因数の和:77453

約数の個数: 24

約数和(自身を含む): 30503265696

約数和(自身を除く): 9415258275

約数列:

[1, 3, 13, 39, 169, 507, 541, 1623, 7033, 21099, 76883, 91429, 230649, 274287, 999479, 2998437, 12993227, 38979681, 41593703, 124781109, 540718139, 1622154417, 7029335807, 21088007421]

約数ペア:

[(1, 21088007421), (3, 7029335807), (13, 1622154417), (39, 540718139), (169, 124781109), (507, 41593703), (541, 38979681), (1623, 12993227), (7033, 2998437), (21099, 999479), (76883, 274287), (91429, 230649)]