2720081

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{421}}^1$

素因数の和:512

約数の個数: 16

約数和(自身を含む): 3403008

約数和(自身を除く): 682927

約数列:

[1, 7, 13, 71, 91, 421, 497, 923, 2947, 5473, 6461, 29891, 38311, 209237, 388583, 2720081]

約数ペア:

[(1, 2720081), (7, 388583), (13, 209237), (71, 38311), (91, 29891), (421, 6461), (497, 5473), (923, 2947)]