201326559

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{222953}}^1$

素因数の和:223006

約数の個数: 16

約数和(自身を含む): 313919232

約数和(自身を除く): 112592673

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 222953, 668859, 1560671, 4682013, 9586979, 28760937, 67108853, 201326559]

約数ペア:

[(1, 201326559), (3, 67108853), (7, 28760937), (21, 9586979), (43, 4682013), (129, 1560671), (301, 668859), (903, 222953)]