12686947

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:235

約数の個数: 32

約数和(自身を含む): 16934400

約数和(自身を除く): 4247453

約数列:

[1, 7, 13, 17, 59, 91, 119, 139, 221, 413, 767, 973, 1003, 1547, 1807, 2363, 5369, 7021, 8201, 12649, 13039, 16541, 30719, 57407, 91273, 106613, 139417, 215033, 746291, 975919, 1812421, 12686947]

約数ペア:

[(1, 12686947), (7, 1812421), (13, 975919), (17, 746291), (59, 215033), (91, 139417), (119, 106613), (139, 91273), (221, 57407), (413, 30719), (767, 16541), (973, 13039), (1003, 12649), (1547, 8201), (1807, 7021), (2363, 5369)]