257185839

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{70327}}^1$

素因数の和:70406

約数の個数: 16

約数和(自身を含む): 364580352

約数和(自身を除く): 107394513

約数列:

[1, 3, 23, 53, 69, 159, 1219, 3657, 70327, 210981, 1617521, 3727331, 4852563, 11181993, 85728613, 257185839]

約数ペア:

[(1, 257185839), (3, 85728613), (23, 11181993), (53, 4852563), (69, 3727331), (159, 1617521), (1219, 210981), (3657, 70327)]