12809781

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{3257}}^1$

素因数の和:3305

約数の個数: 24

約数和(自身を含む): 20329920

約数和(自身を除く): 7520139

約数列:

[1, 3, 9, 19, 23, 57, 69, 171, 207, 437, 1311, 3257, 3933, 9771, 29313, 61883, 74911, 185649, 224733, 556947, 674199, 1423309, 4269927, 12809781]

約数ペア:

[(1, 12809781), (3, 4269927), (9, 1423309), (19, 674199), (23, 556947), (57, 224733), (69, 185649), (171, 74911), (207, 61883), (437, 29313), (1311, 9771), (3257, 3933)]