197648591

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^2$

素因数の和:459

約数の個数: 24

約数和(自身を含む): 244537344

約数和(自身を除く): 46888753

約数列:

[1, 7, 23, 31, 161, 199, 217, 713, 1393, 4577, 4991, 6169, 32039, 39601, 43183, 141887, 277207, 910823, 993209, 1227631, 6375761, 8593417, 28235513, 197648591]

約数ペア:

[(1, 197648591), (7, 28235513), (23, 8593417), (31, 6375761), (161, 1227631), (199, 993209), (217, 910823), (713, 277207), (1393, 141887), (4577, 43183), (4991, 39601), (6169, 32039)]