20745438

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{493939}}^1$

素因数の和:493951

約数の個数: 16

約数和(自身を含む): 47418240

約数和(自身を除く): 26672802

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 493939, 987878, 1481817, 2963634, 3457573, 6915146, 10372719, 20745438]

約数ペア:

[(1, 20745438), (2, 10372719), (3, 6915146), (6, 3457573), (7, 2963634), (14, 1481817), (21, 987878), (42, 493939)]