217020385

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{54323}}^1$

素因数の和:54392

約数の個数: 16

約数和(自身を含む): 281615616

約数和(自身を除く): 64595231

約数列:

[1, 5, 17, 47, 85, 235, 799, 3995, 54323, 271615, 923491, 2553181, 4617455, 12765905, 43404077, 217020385]

約数ペア:

[(1, 217020385), (5, 43404077), (17, 12765905), (47, 4617455), (85, 2553181), (235, 923491), (799, 271615), (3995, 54323)]