20474839

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{1913}}^1$

素因数の和:2070

約数の個数: 16

約数和(自身を含む): 25724160

約数和(自身を除く): 5249321

約数列:

[1, 7, 11, 77, 139, 973, 1529, 1913, 10703, 13391, 21043, 147301, 265907, 1861349, 2924977, 20474839]

約数ペア:

[(1, 20474839), (7, 2924977), (11, 1861349), (77, 265907), (139, 147301), (973, 21043), (1529, 13391), (1913, 10703)]