128212857

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{4591}}^1$

素因数の和:4733

約数の個数: 24

約数和(自身を含む): 193415040

約数和(自身を除く): 65202183

約数列:

[1, 3, 9, 29, 87, 107, 261, 321, 963, 3103, 4591, 9309, 13773, 27927, 41319, 133139, 399417, 491237, 1198251, 1473711, 4421133, 14245873, 42737619, 128212857]

約数ペア:

[(1, 128212857), (3, 42737619), (9, 14245873), (29, 4421133), (87, 1473711), (107, 1198251), (261, 491237), (321, 399417), (963, 133139), (3103, 41319), (4591, 27927), (9309, 13773)]