81396057

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1321}}^1$

素因数の和:1413

約数の個数: 32

約数和(自身を含む): 121835520

約数和(自身を除く): 40439463

約数列:

[1, 3, 19, 23, 47, 57, 69, 141, 437, 893, 1081, 1311, 1321, 2679, 3243, 3963, 20539, 25099, 30383, 61617, 62087, 75297, 91149, 186261, 577277, 1179653, 1428001, 1731831, 3538959, 4284003, 27132019, 81396057]

約数ペア:

[(1, 81396057), (3, 27132019), (19, 4284003), (23, 3538959), (47, 1731831), (57, 1428001), (69, 1179653), (141, 577277), (437, 186261), (893, 91149), (1081, 75297), (1311, 62087), (1321, 61617), (2679, 30383), (3243, 25099), (3963, 20539)]