1680493563

素因数分解:

$3^2\times 7^2\times {\mathrm{3810643}}^1$

素因数の和:3810663

約数の個数: 18

約数和(自身を含む): 2823687204

約数和(自身を除く): 1143193641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 3810643, 11431929, 26674501, 34295787, 80023503, 186721507, 240070509, 560164521, 1680493563]

約数ペア:

[(1, 1680493563), (3, 560164521), (7, 240070509), (9, 186721507), (21, 80023503), (49, 34295787), (63, 26674501), (147, 11431929), (441, 3810643)]