289230021

素因数分解:

$3^6\times {\mathrm{29}}^1\times {\mathrm{13681}}^1$

素因数の和:13728

約数の個数: 28

約数和(自身を含む): 448632780

約数和(自身を除く): 159402759

約数列:

[1, 3, 9, 27, 29, 81, 87, 243, 261, 729, 783, 2349, 7047, 13681, 21141, 41043, 123129, 369387, 396749, 1108161, 1190247, 3324483, 3570741, 9973449, 10712223, 32136669, 96410007, 289230021]

約数ペア:

[(1, 289230021), (3, 96410007), (9, 32136669), (27, 10712223), (29, 9973449), (81, 3570741), (87, 3324483), (243, 1190247), (261, 1108161), (729, 396749), (783, 369387), (2349, 123129), (7047, 41043), (13681, 21141)]