19874127

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1693}}^1$

素因数の和:1759

約数の個数: 32

約数和(自身を含む): 33392128

約数和(自身を除く): 13518001

約数列:

[1, 3, 7, 13, 21, 39, 43, 91, 129, 273, 301, 559, 903, 1677, 1693, 3913, 5079, 11739, 11851, 22009, 35553, 66027, 72799, 154063, 218397, 462189, 509593, 946387, 1528779, 2839161, 6624709, 19874127]

約数ペア:

[(1, 19874127), (3, 6624709), (7, 2839161), (13, 1528779), (21, 946387), (39, 509593), (43, 462189), (91, 218397), (129, 154063), (273, 72799), (301, 66027), (559, 35553), (903, 22009), (1677, 11851), (1693, 11739), (3913, 5079)]