51311312

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{246689}}^1$

素因数の和:246710

約数の個数: 20

約数和(自身を含む): 107063460

約数和(自身を除く): 55752148

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 246689, 493378, 986756, 1973512, 3206957, 3947024, 6413914, 12827828, 25655656, 51311312]

約数ペア:

[(1, 51311312), (2, 25655656), (4, 12827828), (8, 6413914), (13, 3947024), (16, 3206957), (26, 1973512), (52, 986756), (104, 493378), (208, 246689)]