12975309

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{8431}}^1$

素因数の和:8462

約数の個数: 20

約数和(自身を含む): 20405440

約数和(自身を除く): 7430131

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 8431, 25293, 75879, 160189, 227637, 480567, 682911, 1441701, 4325103, 12975309]

約数ペア:

[(1, 12975309), (3, 4325103), (9, 1441701), (19, 682911), (27, 480567), (57, 227637), (81, 160189), (171, 75879), (513, 25293), (1539, 8431)]