28331984

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{43189}}^1$

素因数の和:43238

約数の個数: 20

約数和(自身を含む): 56233380

約数和(自身を除く): 27901396

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 43189, 86378, 172756, 345512, 691024, 1770749, 3541498, 7082996, 14165992, 28331984]

約数ペア:

[(1, 28331984), (2, 14165992), (4, 7082996), (8, 3541498), (16, 1770749), (41, 691024), (82, 345512), (164, 172756), (328, 86378), (656, 43189)]