247657617

素因数分解:

$3^2\times {\mathrm{47}}^2\times {\mathrm{12457}}^1$

素因数の和:12557

約数の個数: 18

約数和(自身を含む): 365530178

約数和(自身を除く): 117872561

約数列:

[1, 3, 9, 47, 141, 423, 2209, 6627, 12457, 19881, 37371, 112113, 585479, 1756437, 5269311, 27517513, 82552539, 247657617]

約数ペア:

[(1, 247657617), (3, 82552539), (9, 27517513), (47, 5269311), (141, 1756437), (423, 585479), (2209, 112113), (6627, 37371), (12457, 19881)]