20561830

素因数分解:

$2^1\times 5^1\times {\mathrm{463}}^1\times {\mathrm{4441}}^1$

素因数の和:4911

約数の個数: 16

約数和(自身を含む): 37099584

約数和(自身を除く): 16537754

約数列:

[1, 2, 5, 10, 463, 926, 2315, 4441, 4630, 8882, 22205, 44410, 2056183, 4112366, 10280915, 20561830]

約数ペア:

[(1, 20561830), (2, 10280915), (5, 4112366), (10, 2056183), (463, 44410), (926, 22205), (2315, 8882), (4441, 4630)]