542781561

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{743}}^1\times {\mathrm{809}}^1$

素因数の和:1605

約数の個数: 32

約数和(自身を含む): 848517120

約数和(自身を除く): 305735559

約数列:

[1, 3, 7, 21, 43, 129, 301, 743, 809, 903, 2229, 2427, 5201, 5663, 15603, 16989, 31949, 34787, 95847, 104361, 223643, 243509, 601087, 670929, 730527, 1803261, 4207609, 12622827, 25846741, 77540223, 180927187, 542781561]

約数ペア:

[(1, 542781561), (3, 180927187), (7, 77540223), (21, 25846741), (43, 12622827), (129, 4207609), (301, 1803261), (743, 730527), (809, 670929), (903, 601087), (2229, 243509), (2427, 223643), (5201, 104361), (5663, 95847), (15603, 34787), (16989, 31949)]