20771312

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{16433}}^1$

素因数の和:16520

約数の個数: 20

約数和(自身を含む): 40756320

約数和(自身を除く): 19985008

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 16433, 32866, 65732, 131464, 262928, 1298207, 2596414, 5192828, 10385656, 20771312]

約数ペア:

[(1, 20771312), (2, 10385656), (4, 5192828), (8, 2596414), (16, 1298207), (79, 262928), (158, 131464), (316, 65732), (632, 32866), (1264, 16433)]