1812321

素因数分解:

$3^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:282

約数の個数: 32

約数和(自身を含む): 3153920

約数和(自身を除く): 1341599

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 129, 189, 223, 301, 387, 669, 903, 1161, 1561, 2007, 2709, 4683, 6021, 8127, 9589, 14049, 28767, 42147, 67123, 86301, 201369, 258903, 604107, 1812321]

約数ペア:

[(1, 1812321), (3, 604107), (7, 258903), (9, 201369), (21, 86301), (27, 67123), (43, 42147), (63, 28767), (129, 14049), (189, 9589), (223, 8127), (301, 6021), (387, 4683), (669, 2709), (903, 2007), (1161, 1561)]