15958271

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{281}}^1$

素因数の和:375

約数の個数: 24

約数和(自身を含む): 19931760

約数和(自身を除く): 3973489

約数列:

[1, 7, 19, 49, 61, 133, 281, 427, 931, 1159, 1967, 2989, 5339, 8113, 13769, 17141, 37373, 56791, 119987, 261611, 325679, 839909, 2279753, 15958271]

約数ペア:

[(1, 15958271), (7, 2279753), (19, 839909), (49, 325679), (61, 261611), (133, 119987), (281, 56791), (427, 37373), (931, 17141), (1159, 13769), (1967, 8113), (2989, 5339)]