247637205

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{239263}}^1$

素因数の和:239297

約数の個数: 24

約数和(自身を含む): 447902208

約数和(自身を除く): 200265003

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 239263, 717789, 1196315, 2153367, 3588945, 5503049, 10766835, 16509147, 27515245, 49527441, 82545735, 247637205]

約数ペア:

[(1, 247637205), (3, 82545735), (5, 49527441), (9, 27515245), (15, 16509147), (23, 10766835), (45, 5503049), (69, 3588945), (115, 2153367), (207, 1196315), (345, 717789), (1035, 239263)]