1245237

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:257

約数の個数: 24

約数和(自身を含む): 1986336

約数和(自身を除く): 741099

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 197, 301, 591, 903, 1379, 2107, 4137, 6321, 8471, 9653, 25413, 28959, 59297, 177891, 415079, 1245237]

約数ペア:

[(1, 1245237), (3, 415079), (7, 177891), (21, 59297), (43, 28959), (49, 25413), (129, 9653), (147, 8471), (197, 6321), (301, 4137), (591, 2107), (903, 1379)]