21082972

素因数分解:

$2^2\times {\mathrm{631}}^1\times {\mathrm{8353}}^1$

素因数の和:8988

約数の個数: 12

約数和(自身を含む): 36958096

約数和(自身を除く): 15875124

約数列:

[1, 2, 4, 631, 1262, 2524, 8353, 16706, 33412, 5270743, 10541486, 21082972]

約数ペア:

[(1, 21082972), (2, 10541486), (4, 5270743), (631, 33412), (1262, 16706), (2524, 8353)]