12687857

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2081}}^1$

素因数の和:2168

約数の個数: 16

約数和(自身を含む): 15856512

約数和(自身を除く): 3168655

約数列:

[1, 7, 13, 67, 91, 469, 871, 2081, 6097, 14567, 27053, 139427, 189371, 975989, 1812551, 12687857]

約数ペア:

[(1, 12687857), (7, 1812551), (13, 975989), (67, 189371), (91, 139427), (469, 27053), (871, 14567), (2081, 6097)]