209730412

素因数分解:

$2^2\times {\mathrm{421}}^1\times {\mathrm{124543}}^1$

素因数の和:124968

約数の個数: 12

約数和(自身を含む): 367902976

約数和(自身を除く): 158172564

約数列:

[1, 2, 4, 421, 842, 1684, 124543, 249086, 498172, 52432603, 104865206, 209730412]

約数ペア:

[(1, 209730412), (2, 104865206), (4, 52432603), (421, 498172), (842, 249086), (1684, 124543)]