256377

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{457}}^1$

素因数の和:488

約数の個数: 16

約数和(自身を含む): 395712

約数和(自身を除く): 139335

約数列:

[1, 3, 11, 17, 33, 51, 187, 457, 561, 1371, 5027, 7769, 15081, 23307, 85459, 256377]

約数ペア:

[(1, 256377), (3, 85459), (11, 23307), (17, 15081), (33, 7769), (51, 5027), (187, 1371), (457, 561)]