161720377

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1117}}^1$

素因数の和:1217

約数の個数: 32

約数和(自身を含む): 209361152

約数和(自身を除く): 47640775

約数列:

[1, 7, 13, 37, 43, 91, 259, 301, 481, 559, 1117, 1591, 3367, 3913, 7819, 11137, 14521, 20683, 41329, 48031, 101647, 144781, 289303, 336217, 537277, 624403, 1777147, 3760939, 4370821, 12440029, 23102911, 161720377]

約数ペア:

[(1, 161720377), (7, 23102911), (13, 12440029), (37, 4370821), (43, 3760939), (91, 1777147), (259, 624403), (301, 537277), (481, 336217), (559, 289303), (1117, 144781), (1591, 101647), (3367, 48031), (3913, 41329), (7819, 20683), (11137, 14521)]