172321787

素因数分解:

${\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{193}}^1$

素因数の和:419

約数の個数: 24

約数和(自身を含む): 195682368

約数和(自身を除く): 23360581

約数列:

[1, 11, 47, 121, 157, 193, 517, 1727, 2123, 5687, 7379, 9071, 18997, 23353, 30301, 81169, 99781, 333311, 892859, 1097591, 1424147, 3666421, 15665617, 172321787]

約数ペア:

[(1, 172321787), (11, 15665617), (47, 3666421), (121, 1424147), (157, 1097591), (193, 892859), (517, 333311), (1727, 99781), (2123, 81169), (5687, 30301), (7379, 23353), (9071, 18997)]