1217851905

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1980247}}^1$

素因数の和:1980296

約数の個数: 16

約数和(自身を含む): 1996089984

約数和(自身を除く): 778238079

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 1980247, 5940741, 9901235, 29703705, 81190127, 243570381, 405950635, 1217851905]

約数ペア:

[(1, 1217851905), (3, 405950635), (5, 243570381), (15, 81190127), (41, 29703705), (123, 9901235), (205, 5940741), (615, 1980247)]