21941584

素因数分解:

$2^4\times 7^1\times {\mathrm{195907}}^1$

素因数の和:195922

約数の個数: 20

約数和(自身を含む): 48585184

約数和(自身を除く): 26643600

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 195907, 391814, 783628, 1371349, 1567256, 2742698, 3134512, 5485396, 10970792, 21941584]

約数ペア:

[(1, 21941584), (2, 10970792), (4, 5485396), (7, 3134512), (8, 2742698), (14, 1567256), (16, 1371349), (28, 783628), (56, 391814), (112, 195907)]