257895617

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{14731}}^1$

素因数の和:14840

約数の個数: 16

約数和(自身を含む): 306897024

約数和(自身を除く): 49001407

約数列:

[1, 7, 41, 61, 287, 427, 2501, 14731, 17507, 103117, 603971, 898591, 4227797, 6290137, 36842231, 257895617]

約数ペア:

[(1, 257895617), (7, 36842231), (41, 6290137), (61, 4227797), (287, 898591), (427, 603971), (2501, 103117), (14731, 17507)]