287907893

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{12809}}^1$

素因数の和:12861

約数の個数: 24

約数和(自身を含む): 375076800

約数和(自身を除く): 87168907

約数列:

[1, 7, 13, 19, 91, 133, 169, 247, 1183, 1729, 3211, 12809, 22477, 89663, 166517, 243371, 1165619, 1703597, 2164721, 3163823, 15153047, 22146761, 41129699, 287907893]

約数ペア:

[(1, 287907893), (7, 41129699), (13, 22146761), (19, 15153047), (91, 3163823), (133, 2164721), (169, 1703597), (247, 1165619), (1183, 243371), (1729, 166517), (3211, 89663), (12809, 22477)]