388639377

素因数分解:

$3^6\times 7^1\times {\mathrm{76159}}^1$

素因数の和:76184

約数の個数: 28

約数和(自身を含む): 665943040

約数和(自身を除く): 277303663

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 5103, 76159, 228477, 533113, 685431, 1599339, 2056293, 4798017, 6168879, 14394051, 18506637, 43182153, 55519911, 129546459, 388639377]

約数ペア:

[(1, 388639377), (3, 129546459), (7, 55519911), (9, 43182153), (21, 18506637), (27, 14394051), (63, 6168879), (81, 4798017), (189, 2056293), (243, 1599339), (567, 685431), (729, 533113), (1701, 228477), (5103, 76159)]