217304857

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{403163}}^1$

素因数の和:403188

約数の個数: 12

約数和(自身を含む): 275764176

約数和(自身を除く): 58459319

約数列:

[1, 7, 11, 49, 77, 539, 403163, 2822141, 4434793, 19754987, 31043551, 217304857]

約数ペア:

[(1, 217304857), (7, 31043551), (11, 19754987), (49, 4434793), (77, 2822141), (539, 403163)]