257561478

素因数分解:

$2^1\times 3^3\times {\mathrm{4769657}}^1$

素因数の和:4769668

約数の個数: 16

約数和(自身を含む): 572358960

約数和(自身を除く): 314797482

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 4769657, 9539314, 14308971, 28617942, 42926913, 85853826, 128780739, 257561478]

約数ペア:

[(1, 257561478), (2, 128780739), (3, 85853826), (6, 42926913), (9, 28617942), (18, 14308971), (27, 9539314), (54, 4769657)]