12899312

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{18749}}^1$

素因数の和:18800

約数の個数: 20

約数和(自身を含む): 25575000

約数和(自身を除く): 12675688

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 18749, 37498, 74996, 149992, 299984, 806207, 1612414, 3224828, 6449656, 12899312]

約数ペア:

[(1, 12899312), (2, 6449656), (4, 3224828), (8, 1612414), (16, 806207), (43, 299984), (86, 149992), (172, 74996), (344, 37498), (688, 18749)]