251343

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{107}}^1$

素因数の和:148

約数の個数: 20

約数和(自身を含む): 392040

約数和(自身を除く): 140697

約数列:

[1, 3, 9, 27, 29, 81, 87, 107, 261, 321, 783, 963, 2349, 2889, 3103, 8667, 9309, 27927, 83781, 251343]

約数ペア:

[(1, 251343), (3, 83781), (9, 27927), (27, 9309), (29, 8667), (81, 3103), (87, 2889), (107, 2349), (261, 963), (321, 783)]