7216389

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{643}}^1$

素因数の和:721

約数の個数: 24

約数和(自身を含む): 11051040

約数和(自身を除く): 3834651

約数列:

[1, 3, 9, 29, 43, 87, 129, 261, 387, 643, 1247, 1929, 3741, 5787, 11223, 18647, 27649, 55941, 82947, 167823, 248841, 801821, 2405463, 7216389]

約数ペア:

[(1, 7216389), (3, 2405463), (9, 801821), (29, 248841), (43, 167823), (87, 82947), (129, 55941), (261, 27649), (387, 18647), (643, 11223), (1247, 5787), (1929, 3741)]