21438426

素因数分解:

$2^1\times 3^1\times {\mathrm{257}}^1\times {\mathrm{13903}}^1$

素因数の和:14165

約数の個数: 16

約数和(自身を含む): 43046784

約数和(自身を除く): 21608358

約数列:

[1, 2, 3, 6, 257, 514, 771, 1542, 13903, 27806, 41709, 83418, 3573071, 7146142, 10719213, 21438426]

約数ペア:

[(1, 21438426), (2, 10719213), (3, 7146142), (6, 3573071), (257, 83418), (514, 41709), (771, 27806), (1542, 13903)]