129381381

素因数分解:

$3^4\times {\mathrm{79}}^1\times {\mathrm{20219}}^1$

素因数の和:20310

約数の個数: 20

約数和(自身を含む): 195729600

約数和(自身を除く): 66348219

約数列:

[1, 3, 9, 27, 79, 81, 237, 711, 2133, 6399, 20219, 60657, 181971, 545913, 1597301, 1637739, 4791903, 14375709, 43127127, 129381381]

約数ペア:

[(1, 129381381), (3, 43127127), (9, 14375709), (27, 4791903), (79, 1637739), (81, 1597301), (237, 545913), (711, 181971), (2133, 60657), (6399, 20219)]