25687921

素因数分解:

$7^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1$

素因数の和:504

約数の個数: 16

約数和(自身を含む): 29969280

約数和(自身を除く): 4281359

約数列:

[1, 7, 109, 131, 257, 763, 917, 1799, 14279, 28013, 33667, 99953, 196091, 235669, 3669703, 25687921]

約数ペア:

[(1, 25687921), (7, 3669703), (109, 235669), (131, 196091), (257, 99953), (763, 33667), (917, 28013), (1799, 14279)]