28390563

素因数分解:

$3^2\times {\mathrm{53}}^2\times {\mathrm{1123}}^1$

素因数の和:1235

約数の個数: 18

約数和(自身を含む): 41834156

約数和(自身を除く): 13443593

約数列:

[1, 3, 9, 53, 159, 477, 1123, 2809, 3369, 8427, 10107, 25281, 59519, 178557, 535671, 3154507, 9463521, 28390563]

約数ペア:

[(1, 28390563), (3, 9463521), (9, 3154507), (53, 535671), (159, 178557), (477, 59519), (1123, 25281), (2809, 10107), (3369, 8427)]