12742443

素因数分解:

$3^2\times 7^1\times {\mathrm{223}}^1\times {\mathrm{907}}^1$

素因数の和:1143

約数の個数: 24

約数和(自身を含む): 21152768

約数和(自身を除く): 8410325

約数列:

[1, 3, 7, 9, 21, 63, 223, 669, 907, 1561, 2007, 2721, 4683, 6349, 8163, 14049, 19047, 57141, 202261, 606783, 1415827, 1820349, 4247481, 12742443]

約数ペア:

[(1, 12742443), (3, 4247481), (7, 1820349), (9, 1415827), (21, 606783), (63, 202261), (223, 57141), (669, 19047), (907, 14049), (1561, 8163), (2007, 6349), (2721, 4683)]