20341538

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{10453}}^1$

素因数の和:10601

約数の個数: 16

約数和(自身を含む): 35125440

約数和(自身を除く): 14783902

約数列:

[1, 2, 7, 14, 139, 278, 973, 1946, 10453, 20906, 73171, 146342, 1452967, 2905934, 10170769, 20341538]

約数ペア:

[(1, 20341538), (2, 10170769), (7, 2905934), (14, 1452967), (139, 146342), (278, 73171), (973, 20906), (1946, 10453)]