20617772

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{15667}}^1$

素因数の和:15725

約数の個数: 24

約数和(自身を含む): 42115584

約数和(自身を除く): 21497812

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 15667, 31334, 62668, 109669, 219338, 438676, 736349, 1472698, 2945396, 5154443, 10308886, 20617772]

約数ペア:

[(1, 20617772), (2, 10308886), (4, 5154443), (7, 2945396), (14, 1472698), (28, 736349), (47, 438676), (94, 219338), (188, 109669), (329, 62668), (658, 31334), (1316, 15667)]