25506981

素因数分解:

$3^7\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:237

約数の個数: 32

約数和(自身を含む): 38966400

約数和(自身を除く): 13459419

約数列:

[1, 3, 9, 27, 81, 107, 109, 243, 321, 327, 729, 963, 981, 2187, 2889, 2943, 8667, 8829, 11663, 26001, 26487, 34989, 78003, 79461, 104967, 234009, 238383, 314901, 944703, 2834109, 8502327, 25506981]

約数ペア:

[(1, 25506981), (3, 8502327), (9, 2834109), (27, 944703), (81, 314901), (107, 238383), (109, 234009), (243, 104967), (321, 79461), (327, 78003), (729, 34989), (963, 26487), (981, 26001), (2187, 11663), (2889, 8829), (2943, 8667)]