20390342

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{33871}}^1$

素因数の和:33923

約数の個数: 16

約数和(自身を含む): 35768832

約数和(自身を除く): 15378490

約数列:

[1, 2, 7, 14, 43, 86, 301, 602, 33871, 67742, 237097, 474194, 1456453, 2912906, 10195171, 20390342]

約数ペア:

[(1, 20390342), (2, 10195171), (7, 2912906), (14, 1456453), (43, 474194), (86, 237097), (301, 67742), (602, 33871)]