257257132706

素因数分解:

$2^1\times 7^1\times {\mathrm{881}}^1\times {\mathrm{20857559}}^1$

素因数の和:20858449

約数の個数: 16

約数和(自身を含む): 441512830080

約数和(自身を除く): 184255697374

約数列:

[1, 2, 7, 14, 881, 1762, 6167, 12334, 20857559, 41715118, 146002913, 292005826, 18375509479, 36751018958, 128628566353, 257257132706]

約数ペア:

[(1, 257257132706), (2, 128628566353), (7, 36751018958), (14, 18375509479), (881, 292005826), (1762, 146002913), (6167, 41715118), (12334, 20857559)]