251272017

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{3739}}^1$

素因数の和:3898

約数の個数: 32

約数和(自身を含む): 394944000

約数和(自身を除く): 143671983

約数列:

[1, 3, 9, 19, 27, 57, 131, 171, 393, 513, 1179, 2489, 3537, 3739, 7467, 11217, 22401, 33651, 67203, 71041, 100953, 213123, 489809, 639369, 1469427, 1918107, 4408281, 9306371, 13224843, 27919113, 83757339, 251272017]

約数ペア:

[(1, 251272017), (3, 83757339), (9, 27919113), (19, 13224843), (27, 9306371), (57, 4408281), (131, 1918107), (171, 1469427), (393, 639369), (513, 489809), (1179, 213123), (2489, 100953), (3537, 71041), (3739, 67203), (7467, 33651), (11217, 22401)]